The Washer,concave, cataloged under National Stock Number 5310-01-419-6059, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-419-6059 |
| Primary Part Number | 8100-1253-0238 PIECE 101 |
| Item Name | Washer,concave |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bath Iron Works Corporation |
| Status | ACTIVE |
| Radius | 0.450 INCHES NOMINAL IN |
| Style Designator | CONCAVE |
| Material Document and Classification | ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.562 INCHES NOMINAL IN |
| Recess Depth | 0.031 INCHES NOMINAL IN |
| Material Thickness | 0.094 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.313 INCHES MINIMUM AND 0.316 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 |
|---|---|
| 8100-1253-0236 PIECE 602 | Bath Iron Works Corporation (USA) |
| 8100-1253-0238 PIECE 101 PRIMARY | Bath Iron Works Corporation (USA) |
| Reference | Meaning |
|---|---|
| 43013-301 | C/1 Advisory reference — outside the item-of-supply concept Bath Iron Works Corporation |
NSN 5310-01-419-6059 is a Washer,concave, manufactured by Bath Iron Works Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-419-6059 has 2 manufacturer part numbers on file: 8100-1253-0236 PIECE 602 (Bath Iron Works Corporation), 8100-1253-0238 PIECE 101 (Bath Iron Works Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-512-1141. Verify interchangeability with system specifications before substitution.
Key specifications for 8100-1253-0238 PIECE 101: Radius: 0.450 INCHES NOMINAL IN; Style Designator: CONCAVE; Material Document and Classification: ASTM B21 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.562 INCHES NOMINAL IN. 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.