The Washer,flat, cataloged under National Stock Number 5310-00-700-8402, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is United Technologies Corp Electro Systems Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-700-8402 |
| Primary Part Number | WA1272 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | United Technologies Corp Electro Systems Inc |
| Status | ACTIVE |
| Overall Diameter | 0.415 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ANODIZE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Thickness | 0.032 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 |
|---|---|
| WA1272 PRIMARY | United Technologies Corp Electro Systems Inc (USA) |
| 7008402 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| WA1272 | 5/9 Secondary reference Ambac International Corporation Div Ambac International |
NSN 5310-00-700-8402 is a Washer,flat, manufactured by United Technologies Corp Electro Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-700-8402 has 2 manufacturer part numbers on file: WA1272 (United Technologies Corp Electro Systems Inc), 7008402 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for WA1272: Overall Diameter: 0.415 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: ANODIZE OVERALL; Peripheral Shape Style: ROUND. 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.