The Washer,flat, cataloged under National Stock Number 5310-01-481-5484, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bath Iron Works Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-5484 |
| Primary Part Number | 42014-010 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-639,ALLOY 464 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 464 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.594 INCHES NOMINAL IN |
| Thickness | 0.125 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 |
|---|---|
| 42014-010 PRIMARY | Bath Iron Works Corporation (USA) |
| 8100-1253-0238 PT NO 82 | Bath Iron Works Corporation (USA) |
| Reference | Meaning |
|---|---|
| 8100-1252-0236 PT NO 840 | 5/9 Secondary reference Bath Iron Works Corporation |
| 8100-1253-0238 | D/9 Drawing number reference only Bath Iron Works Corporation |
NSN 5310-01-481-5484 is a Washer,flat, manufactured by Bath Iron Works Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-481-5484 has 2 manufacturer part numbers on file: 42014-010 (Bath Iron Works Corporation), 8100-1253-0238 PT NO 82 (Bath Iron Works Corporation).
Key specifications for 42014-010: Overall Diameter: 1.250 INCHES NOMINAL IN; Material Document and Classification: QQ-B-639,ALLOY 464 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.