The Washer,flat, cataloged under National Stock Number 5310-00-579-0367, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-579-0367 |
| Primary Part Number | 1322978 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| Overall Diameter | 0.709 INCHES MINIMUM AND 0.729 INCHES MAXIMUM IN |
| Material Document and Classification | B4E,4A2,FSCM 24446 MFR REF 1ST MATERIAL RESPONSE AND QQ-S-640-CANC FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OR STEEL COMP 1009 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Thickness | 0.084 INCHES MINIMUM AND 0.104 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 |
|---|---|
| 1322978 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 1322978 | 5/2 Secondary reference U.S. Government activity |
| 1322978 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-579-0367 is a Washer,flat, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-579-0367 has 1 manufacturer part number on file: 1322978 (Honeywell International, Inc Div Aerospace-Tucson).
Key specifications for 1322978: Overall Diameter: 0.709 INCHES MINIMUM AND 0.729 INCHES MAXIMUM IN; Material Document and Classification: B4E,4A2,FSCM 24446 MFR REF 1ST MATERIAL RESPONSE AND QQ-S-640-CANC FED SPEC 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: CADMIUM OVERALL. 9 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.