The Washer,flat, cataloged under National Stock Number 5310-00-673-5263, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Federal Industries, Inc. Dba Federal Industries Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-673-5263 |
| Primary Part Number | 360427-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Federal Industries, Inc. Dba Federal Industries Inc |
| Status | ACTIVE |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Material Document and Classification | MIL-P-79 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.331 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN |
| Thickness | 0.031 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 |
|---|---|
| 360427-1 | Federal Industries, Inc. Dba Federal Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 360427-1 | 3/2 Design control — primary reference U.S. Government activity |
| 5310PL1559935 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-00-673-5263 is a Washer,flat, manufactured by Federal Industries, Inc. Dba Federal Industries Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-673-5263 has 1 manufacturer part number on file: 360427-1 (Federal Industries, Inc. Dba Federal Industries Inc).
Key specifications for 360427-1: Overall Diameter: 0.625 INCHES NOMINAL IN; Material Document and Classification: MIL-P-79 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.