The Washer,flat, cataloged under National Stock Number 5310-00-770-8545, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-770-8545 |
| Primary Part Number | 0S026384 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Heat Treatment | COLD ROLLED |
| Material Document and Classification | QQ-S-636-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Departure From Cited Designator | AS MODIFIED BY SPECIAL FEATURES |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.164 INCHES NOMINAL IN |
| Thickness | 0.016 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 77730883 | MB Aerospace Ltd (GBR) |
| 0S026384 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Y77730883 | Goodrich Limited Div Goodrich Ltd (GBR) |
| Reference | Meaning |
|---|---|
| AN960-8L | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-770-8545 is a Washer,flat, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-770-8545 has 3 manufacturer part numbers on file: 77730883 (MB Aerospace Ltd), 0S026384 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), Y77730883 (Goodrich Limited Div Goodrich Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-662-8200. Verify interchangeability with system specifications before substitution.
Key specifications for 0S026384: Overall Diameter: 0.375 INCHES NOMINAL IN; Heat Treatment: COLD ROLLED; Material Document and Classification: QQ-S-636-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 11 specifications are documented in the U.S. Government catalog.
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.