The Washer,key, cataloged under National Stock Number 5310-01-078-8960, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-078-8960 |
| Primary Part Number | 778-0354-001 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Surface Treatment Document and Classification | 580-0025-00,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.357 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN |
| Material Thickness | 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 304 OVERALL |
| Hole Diameter | 0.280 INCHES MINIMUM AND 0.283 INCHES MAXIMUM 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 |
|---|---|
| 778-0354-001 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 778-0354-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 778-0354-001 | 5/9 Secondary reference Oak Crystal Inc |
NSN 5310-01-078-8960 is a Washer,key, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-078-8960 has 2 manufacturer part numbers on file: 778-0354-001 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 778-0354-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-183-3652. Verify interchangeability with system specifications before substitution.
Key specifications for 778-0354-001: Surface Treatment Document and Classification: 580-0025-00,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.357 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN; Material Thickness: 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN. 7 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.