The Washer,flat, cataloged under National Stock Number 5310-00-153-8779, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-153-8779 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-766,COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-766,COND A FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-763,COND A FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-766 FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | DEE |
| Width | 1.685 INCHES MINIMUM AND 1.815 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN |
| Thickness | 0.100 INCHES MINIMUM AND 0.140 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 |
| Reference | Meaning |
|---|---|
| 2587794 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-153-8779 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6605-00-592-6033. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-153-8779: Overall Diameter: 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-766,COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-766,COND A FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-763,COND A FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-766 FED SPEC 3RD MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: DEE. 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.