The FS801 Series Military-Grade Fiber Optic Connector is a MIL-Grade circular fiber optic connector produced by F-tone Networks (北亿纤通). It provides 2-core (M15) and 4-core (M18) configurations across 6 SKUs (Plug + Jam Nut Receptacle + Square Flange Receptacle × 2-core/4-core), manufactured from cadmium-plated aluminum alloy in military green (Olive Drab Cadmium), featuring an N-position polarization for mis-mating prevention. With insertion loss ≤ 0.6dB, mechanical endurance ≥ 500 cycles, vibration 10-2000Hz / 147m/s², shock 980m/s², salt spray 200h, and operating temperature -45°C ~ +85°C, the FS801 Series is the ideal solution for military communication, naval/shipboard, airborne, vehicle, field operation, and harsh environment fiber optic communication systems.
This is the English version of the FS801 Series technical specification document. For the Chinese version, please refer to the FS801 光纤连接器技术规格书 V3.06 article (ID 21140).
This product is part of the [FS801 Series Military-Grade Fiber Optic Connector V3.06] product line, 6 SKUs, 2-core/4-core dual specifications
📦 Complete 6-SKU Catalog
FS801-11P02ACN
2-Core Plug
11# Housing M15×1
Cadmium-plated aluminum alloy, military green
N-position
2-Core Plug
11# Housing M15×1
Cadmium-plated aluminum alloy, military green
N-position
FS801-11J02ACN
2-Core Receptacle
11# Housing, Jam Nut Mounting
Cadmium-plated aluminum alloy, military green
N-position
2-Core Receptacle
11# Housing, Jam Nut Mounting
Cadmium-plated aluminum alloy, military green
N-position
FS801-11R02ACN
2-Core Receptacle
11# Housing, Square Flange Mounting
Cadmium-plated aluminum alloy, military green
N-position
2-Core Receptacle
11# Housing, Square Flange Mounting
Cadmium-plated aluminum alloy, military green
N-position
FS801-13P04ACN
4-Core Plug
13# Housing M18×1
Cadmium-plated aluminum alloy, military green
N-position
4-Core Plug
13# Housing M18×1
Cadmium-plated aluminum alloy, military green
N-position
FS801-13J04ACN
4-Core Receptacle
13# Housing, Jam Nut Mounting
Cadmium-plated aluminum alloy, military green
N-position
4-Core Receptacle
13# Housing, Jam Nut Mounting
Cadmium-plated aluminum alloy, military green
N-position
FS801-13R04ACN
4-Core Receptacle
13# Housing, Square Flange Mounting
Cadmium-plated aluminum alloy, military green
N-position
4-Core Receptacle
13# Housing, Square Flange Mounting
Cadmium-plated aluminum alloy, military green
N-position
🛡️ Military-Grade Environmental Performance
✅ Insertion Loss: ≤ 0.6dB
✅ Vibration: 10~2000Hz, acceleration 147m/s²
✅ Shock: peak acceleration 980m/s²
✅ Mechanical Endurance: ≥ 500 cycles
✅ Salt Spray: 200h (salt fog resistant)
✅ Operating Temperature: -45°C ~ +85°C (extended temp range)
P12-Core M15 Series (FS801-11P02ACN Plug + FS801-11J02ACN Jam Nut Receptacle)
FS801-11P02ACN (2-Core Plug) + FS801-11J02ACN (2-Core Jam Nut Receptacle) — M15 Thread 2-Core Series External Diagram (P1/5)
FS801-11P02ACN (2-Core Plug) Specifications
| Parameter | Specification | Description |
|---|---|---|
| Type | 2-Core Plug | 11# Housing |
| Housing | 11# Housing | 11 Standard Housing |
| Shell Material | Cadmium-plated aluminum alloy, military green | Military-grade coating (Olive Drab Cadmium) |
| Keying | N-position | Polarization key design |
| Maximum Head Diameter | Φ25mm | Operating head dimension |
| Thread Specification | M15×1 | Metric fine thread, nominal diameter 15mm, pitch 1mm |
| Total Length (Maximum) | 37.5mm Max | From leftmost head end to rightmost thread end |
| Head to Thread Root (Maximum) | 31.5mm Max | — |
FS801-11J02ACN (2-Core Jam Nut Receptacle) Specifications
| Parameter | Specification | Description |
|---|---|---|
| Type | 2-Core Receptacle (Jam Nut Mounting) | 11# Housing |
| Housing | 11# Housing | 11 Standard Housing |
| Shell Material | Cadmium-plated aluminum alloy, military green | Military-grade coating |
| Keying | N-position | Polarization key design |
| Ring Outer Diameter | Ø35.2mm | Maximum outer diameter of the ring groove |
| Inner Width | 25.5mm | Horizontal width of the inner cut edge |
| Outermost Width | 31.8mm | Total horizontal width |
| Mounting Method | Jam Nut Mounting | — |
| Right-end Thread | M15 | Metric external thread, nominal diameter 15mm |
| Total Axial Length | 30.5mm | From leftmost part end to the outer side of the square locating stop edge |
| Axial Length 1 | 22.4mm | Left end to inner side of diamond flange |
| Axial Length 2 | 2.5mm | Inner side of diamond flange to outer side of square locating stop edge |
| Sealing Groove | Ø20.88mm recess | For installing sealing ring to achieve waterproof and dustproof |
| Sealing Groove Vertical Spacing | 19.53mm | — |
P22-Core M15 Square Flange Receptacle (FS801-11R02ACN) + 4-Core M18 Plug (FS801-13P04ACN)
FS801-11R02ACN (2-Core Square Flange Receptacle) + FS801-13P04ACN (4-Core Plug) — Square Flange Receptacle Installation Size + 4-Core Plug External Diagram (P2/5)
FS801-11R02ACN (2-Core Square Flange Receptacle) Specifications
| Parameter | Specification | Description |
|---|---|---|
| Type | 2-Core Receptacle (Square Flange Mounting) | 11# Housing |
| Housing | 11# Housing | 11 Standard Housing |
| Shell Material | Cadmium-plated aluminum alloy, military green | Military-grade coating |
| Keying | N-position | Polarization key design |
| Overall Total Length | 38mm | Total length of the connector |
| Left End to Flange Left End Face | 20.7mm | Length from left end to left end face of the flange plate |
| Flange Mounting Plate Thickness | 2.5mm | Flange mounting plate thickness |
| Right-end Thread | M15 | Metric thread, nominal diameter 15mm |
| Flange Total Outer Edge Length | 26.2mm | Total outer edge length of the square mounting flange |
| Slot Hole Center-to-Center Spacing | 18.26mm | Center-to-center distance between two slot mounting holes on the same side |
| Slot Hole Outermost Spacing | 20.62mm | Outermost edge spacing between two slot mounting holes on the same side |
| Slot Hole Short Edge | 3.25mm | Short edge length of the slot hole |
| Mounting Method | Square Flange Mounting | 4 corner mounting holes |
FS801-11R02ACN Square Flange Panel Cutout Requirements
💡 Two Panel Cutout Specifications (Adapting Ø15.88 / Ø20.22 Center Hole):
| Parameter | Option A (Ø15.88 Center Hole) | Option B (Ø20.22 Center Hole) |
|---|---|---|
| Center Circular Hole Diameter | Ø15.88mm | Ø20.22mm |
| Cutout Locating Area Outer Outline Length & Width | 20.62 × 20.62mm | 20.62 × 20.62mm |
| 4 Corner Mounting Hole Diameter | Ø3.25mm | Ø3.25mm |
| Maximum Allowed Panel Thickness | 3.2mm | 2.5mm |
| Installation Direction | From panel inner side to outer side | From panel outer side to inner side |
P34-Core M18 Series (FS801-13P04ACN Plug + FS801-13J04ACN Jam Nut Receptacle)
FS801-13P04ACN (4-Core Plug) + FS801-13J04ACN (4-Core Jam Nut Receptacle) — M18 Thread 4-Core Series External Diagram (P3/5)
FS801-13P04ACN (4-Core Plug) Specifications
| Parameter | Specification | Description |
|---|---|---|
| Type | 4-Core Plug | 13# Housing |
| Housing | 13# Housing | 13 Standard Housing |
| Shell Material | Cadmium-plated aluminum alloy, military green | Military-grade coating |
| Keying | N-position | Polarization key design |
| Total Length (Maximum) | 34mm Max | Maximum axial total length |
| Maximum Head Diameter | Ø29.5mm | Maximum outer diameter of the operating end rotation section |
| Mounting Specification | M18 Thread | Adapted for M18 specification panel cutout |
| Number of Contacts | 4 (A/B/C/D) | 4-core wiring contacts |
| Center Structure | Hexagonal positioning | Center hexagonal positioning structure |
FS801-13J04ACN (4-Core Jam Nut Receptacle) Specifications
| Parameter | Specification | Description |
|---|---|---|
| Type | 4-Core Receptacle (Jam Nut Mounting) | 13# Housing |
| Housing | 13# Housing | 13 Standard Housing |
| Shell Material | Cadmium-plated aluminum alloy, military green | Military-grade coating |
| Keying | N-position | Polarization key design (top master key) |
| Total Axial Length | 30.5mm | Total axial length of the connector |
| Axial Length 1 | 22.4mm | Length from left end face to right end face of flange plate |
| Axial Length 2 | 2.5mm | Length from right end face of flange plate to rightmost end of connector |
| Housing Smaller Edge-to-Edge Dimension | 30.2mm | Smaller edge-to-edge dimension of the polarization shaped cut housing |
| Housing Maximum Diagonal Dimension | 34.9mm | Maximum edge-to-edge / diagonal dimension of the housing |
| Inner Pin Cavity Radius | R19.2mm | Radius of the inner pin cavity |
| Number of Pins | 4 (A/B/C/D) | 4 pin holes inside the cavity |
| Locating Pin Holes | 2 | 2 locating pin holes |
| Mounting Method | Jam Nut Mounting | — |
P44-Core M18 Square Flange Receptacle (FS801-13R04ACN)
FS801-13R04ACN (4-Core Square Flange Receptacle) — M18 Thread 4-Core Square Flange Series External Diagram (P4/5)
FS801-13R04ACN (4-Core Square Flange Receptacle) Specifications
| Parameter | Specification | Description |
|---|---|---|
| Type | 4-Core Receptacle (Square Flange Mounting) | 13# Housing |
| Housing | 13# Housing | 13 Standard Housing |
| Shell Material | Cadmium-plated aluminum alloy, military green | Military-grade coating |
| Keying | N-position | Polarization key design |
| Total Length (Maximum) | 31.5mm Max | Maximum axial length of the entire part |
| Left End to Flange Left End Face | 20.7mm | Axial distance from leftmost part end to left side face of locating flange |
| Flange Thickness | 2.5mm | Axial thickness of the locating flange itself |
| Right-end Mounting Thread | M18×1 | Metric fine external thread, nominal diameter 18mm, pitch 1mm |
| Inner Hole Parallel Cutting Spacing | 24.26mm | Distance between upper and lower flat surfaces of the shaped inner hole |
| Inner Hole Arc Diameter | Ø25.58mm | Original round hole diameter corresponding to the uncut arc surface of the shaped hole |
| Flange Outer Outline Total Edge Length | 28.6mm | Horizontal and vertical outer outline total dimensions |
| Mounting Hole Center-to-Center Spacing | 23.01mm | Horizontal and vertical center-to-center spacing of the four mounting holes |
| Slot Mounting Hole Short Edge | 3.25mm | Short edge dimension of the slot (race-track) mounting hole |
| Mounting Method | Square Flange Mounting | 4 corner mounting holes |
FS801-13R04ACN Square Flange Panel Cutout Requirements
💡 Two Panel Cutout Specifications (Adapting Ø19.05 / Ø23.42 Center Hole):
| Parameter | Option 1 (Ø19.05 Center Hole) | Option 2 (Ø23.42 Center Hole) |
|---|---|---|
| Center Through-hole Diameter | Ø19.05mm | Ø23.42mm |
| Mounting Hole Distribution Square Edge Length | 23.01 × 23.01mm | 23.01 × 23.01mm |
| Single Fixing Mounting Hole Diameter | Ø3.25mm | Ø3.25mm |
| Maximum Allowed Panel Thickness | 3.2mm | 2.5mm |
| Installation Direction | From panel inner side to outer side | From panel outer side to inner side |
P5Product Performance
FS801 Series Military-Grade Fiber Optic Connector — Product Performance Parameters (P5/5)
| Item | Parameter | Description |
|---|---|---|
| Insertion Loss | ≤ 0.6dB | Optical performance indicator |
| Vibration | Frequency 10~2000Hz, acceleration 147m/s² | Military-grade vibration resistance |
| Shock | Peak acceleration 980m/s² | Military-grade shock resistance |
| Mechanical Endurance | ≥ 500 cycles | Mating cycle lifetime |
| Salt Spray | 200h | Salt fog corrosion resistance |
| Operating Temperature | -45°C ~ +85°C | Extended temperature operating range |
FS801 Series — Key Differentiators
✅ 6 SKUs Complete Coverage — 2-core/4-core × Plug/Jam Nut Receptacle/Square Flange Receptacle
✅ 2-Core M15×1 + 4-Core M18×1 — Two housing specifications (11# / 13#)
✅ Cadmium-plated aluminum alloy military green housing — Military-grade Olive Drab Cadmium coating
✅ N-position polarization design — Prevents mis-mating, improves mating reliability
✅ Insertion Loss ≤ 0.6dB — Excellent optical performance
✅ Vibration 10-2000Hz / 147m/s² — Military-grade vibration resistance
✅ Shock 980m/s² — Military-grade shock resistance
✅ Mechanical Endurance ≥ 500 cycles — Long mating lifetime
✅ Salt Spray 200h — Salt fog corrosion resistance
✅ Operating Temperature -45°C ~ +85°C — Extended temperature range
✅ Sealing ring + anti-slip knurling + master key positioning — Multi-protection design
✅ Panel cutout dual adaptation — Ø15.88 / Ø20.22 (2-core) + Ø19.05 / Ø23.42 (4-core)
Typical Applications
- Military Communication: Tactical communication / field communication / military command posts
- Naval / Shipboard: Shipboard communication / shipboard radar / shipboard command systems
- Airborne: Airborne communication / flight control / aircraft avionics
- Vehicle: Military vehicles / armored vehicles / mobile command vehicles
- Field Operations: Field exploration / emergency communication / rescue communication
- Harsh Environments: Desert / marine / high altitude / high temperature / high cold
- Industrial Harsh Environments: Petrochemical / mining / port / heavy industry
🌐 F-tone Networks (北亿纤通) — Company Information
Company Name:北亿纤通 | F-toneNetworks
Region:China Sichuan Tianfu New Area (中国四川天府新区)
Service Area:Global
Tel:028-85255257
Fax:028-85977702
Mobile:19081343401
Sales:sales@f-tone.com
Support:support@f-tone.com
This product is part of the [FS801 Series Military-Grade Fiber Optic Connector V3.06] product line. For detailed information, please contact our sales representatives. Thank you!
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.