The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-368-2980, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Mcmaster-Carr Supply Co (CAGE 39428); Federal Screw Products, Inc. (CAGE 73734) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-368-2980 |
| Primary Part Number | 96278A005 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 96278A005 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| 71600 PRIMARY | Federal Screw Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 40006256+000 | 5/9 Secondary reference L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West |
| 98-19775 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
NSN 5310-01-368-2980 is a Nut,self-Locking,extended Washer, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-368-2980 has 2 manufacturer part numbers on file: 96278A005 (Mcmaster-Carr Supply Co), 71600 (Federal Screw Products, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 2930-01-379-3808, 6230-01-591-8376, 3695-01-678-4865. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.