The Washer,flat, cataloged under National Stock Number 5310-01-295-6170, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hiab Usa Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-295-6170 |
| Primary Part Number | 315-4921 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hiab Usa Inc |
| Status | ACTIVE |
| Overall Diameter | 32.0 MILLIMETERS NOMINAL MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 10.5 MILLIMETERS NOMINAL MM |
| Thickness | 5.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 315-4921 PRIMARY | Hiab Usa Inc (USA) |
| 81907120726 | Man Truck & Bus Se (DEU) |
| 10524128 | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| 315-4921 | 5/9 Secondary reference Atlas Polar Company Limited Div Atlas Polar Company Ltd |
NSN 5310-01-295-6170 is a Washer,flat, manufactured by Hiab Usa Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-295-6170 has 3 manufacturer part numbers on file: 315-4921 (Hiab Usa Inc), 81907120726 (Man Truck & Bus Se), 10524128 (General Dynamics Land Systems Canadacorp).
Key specifications for 315-4921: Overall Diameter: 32.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL OVERALL. 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.