The Washer,flat, cataloged under National Stock Number 5310-01-481-5810, 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 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-481-5810 |
| Primary Part Number | 8100-1253-0238 P/N 618 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Material Document and Classification | ASTM A569 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | STEEL COMP 1009 OVERALL |
| 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 |
|---|---|
| 8100-1253-0238 P/N 618 PRIMARY | Bath Iron Works Corporation (USA) |
| Reference | Meaning |
|---|---|
| 41149-051 | 5/9 Secondary reference Bath Iron Works Corporation |
NSN 5310-01-481-5810 is a Washer,flat, manufactured by Bath Iron Works Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-481-5810 has 1 manufacturer part number on file: 8100-1253-0238 P/N 618 (Bath Iron Works Corporation).
Key specifications for 8100-1253-0238 P/N 618: Material Document and Classification: ASTM A569 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; End Item Identification: SCUTTLE:MARINE HARDWARE & HULL DOORS; Material: STEEL COMP 1009 OVERALL. 2 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.