The Washer,flat, cataloged under National Stock Number 5310-01-617-1587, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-617-1587 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 3(5.1MM PLATING THICKNESS) FED SPEC SINGLE TREATMENT RESPONSE OVERALL MM |
| Overall Diameter | 19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | QQ-P-416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 80204-ANSI B18.22M NATIONAL STD/SPEC |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 10.85 MILLIMETERS MINIMUM AND 11.12 MILLIMETERS MAXIMUM MM |
| Thickness | 1.60 MILLIMETERS MINIMUM AND 2.30 MILLIMETERS MAXIMUM MM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B18.22M | 5/1 Secondary reference U.S. Government activity |
| B1822AS100N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-617-1587 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-617-1587: Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 3(5.1MM PLATING THICKNESS) FED SPEC SINGLE TREATMENT RESPONSE OVERALL MM; Overall Diameter: 19.48 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM MM; Material Document and Classification: QQ-P-416 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.
NSN 5310-01-617-1587 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.