The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-137-5259, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-01-137-5259 |
| Primary Part Number | M81511/51FD03S5 |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Connector Locking Method | BAYONET PIN |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE, EXTERNAL COUPLING |
| Terminal Type | CRIMP SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Material | COPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 14-9 SINGLE MATING END |
| Shell Surface Treatment | NICKEL |
| Insert Position in Deg | 56.0 AND 125.0 AND 205.0 AND 296.0 |
| Unthreaded Mounting Hole Diameter | 0.116 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN |
| Precious Material and Weight | 0.009 GOLD GRAINS, TROY |
| Shell Material Document and Classification | QQ-A-367,T-6 FED SPEC SINGLE MATERIAL RESPONSE |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN |
| Included Contact Quantity | 9 SINGLE MATING END SINGLE CONTACT GROUPING |
| Shell Surface Treatment Document and Classification | MIL-C-26074,CLASS 3,GRADE A MIL SPEC SINGLE TREATMENT RESPONSE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.875 INCHES IN |
| Specification/standard Data | 81349-MIL-C-81511/51 GOVERNMENT SPECIFICATION |
| Included Contact Type | ROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN |
| Polarization Method | KEYWAY OR MULTIPLE KEYWAY |
| Contact Surface Treatment Document and Classification | MIL-G-45204,TYPE 1 OR 2 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING |
| Environmental Protection | MOISTURE PROOF AND SALT WATER RESISTANT AND SHOCK PROOF AND VIBRATION PROOF |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Distance From Mounting Shoulder to Front Face | 0.765 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M81511/51FD03S5 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MIL-C-81511/51 | 5/9 Secondary reference U.S. Government activity |
| M81511/51FD03S5 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS81511/51 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5935-01-137-5259 is a Connector,receptacle,electrical, manufactured by Sae International Dba Sae International, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-137-5259 has 1 manufacturer part number on file: M81511/51FD03S5 (Sae International Dba Sae International).
Key specifications for M81511/51FD03S5: Overall Height: 1.117 INCHES MINIMUM AND 1.133 INCHES MAXIMUM IN; Connector Locking Method: BAYONET PIN; Shell Type: SOLID; Body Style: STRAIGHT SHAPE, EXTERNAL COUPLING. 27 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.