The Washer,flat, cataloged under National Stock Number 5310-00-282-0531, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-282-0531 |
| Primary Part Number | 3272716 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-613,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Departure From Cited Designator | AS MODIFIED BY CENTER HOLE AND THICKNESS DIMENSIONS |
| Nondefinitive Spec/std Data | A TYPE AND 1 GRADE AND E CLASS |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 11 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.328 INCHES NOMINAL IN |
| Thickness | 0.020 INCHES NOMINAL 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 |
|---|---|
| 3272716 PRIMARY | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3272716 | 5/9 Secondary reference General Motors Corp Electro-Motive Div |
| FFW92 | 4/1 Identification reference U.S. Government activity |
| G34BD10 | 5/9 Secondary reference Curtiss-Wright Corp |
NSN 5310-00-282-0531 is a Washer,flat, manufactured by Hatch & Kirk, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-282-0531 has 1 manufacturer part number on file: 3272716 (Hatch & Kirk, Inc.).
Key specifications for 3272716: Overall Diameter: 0.438 INCHES NOMINAL IN; Material Document and Classification: QQ-B-613,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Departure From Cited Designator: AS MODIFIED BY CENTER HOLE AND THICKNESS DIMENSIONS. 10 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.