The Washer,flat, cataloged under National Stock Number 5310-01-445-6441, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Accurate Screw Machine Corp Div Accurate Screw Machine Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-445-6441 |
| Primary Part Number | 119A-.062-B-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| Status | ACTIVE |
| Overall Diameter | 0.435 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-B-626, 1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Thickness | 0.056 INCHES MINIMUM AND 0.068 INCHES MAXIMUM 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 |
|---|---|
| 119A-.062-B-1 PRIMARY | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
NSN 5310-01-445-6441 is a Washer,flat, manufactured by Accurate Screw Machine Corp Div Accurate Screw Machine Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-445-6441 has 1 manufacturer part number on file: 119A-.062-B-1 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation).
Key specifications for 119A-.062-B-1: Overall Diameter: 0.435 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN; Material Document and Classification: QQ-B-626, 1/2 HARD FED 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.