The Washer,seal, cataloged under National Stock Number 5310-01-520-4149, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Hardigg Industries, Llc Div Hardigg Cases. Government technical data includes 7 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 | 5310-01-520-4149 |
| Primary Part Number | P021-0236-03 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Hardigg Industries, Llc Div Hardigg Cases |
| Status | ACTIVE |
| Surface Treatment Document and Classification | SAE-AMS-00-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | CONCAVE |
| Material Document and Classification | ASTM-A-666-96 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 304 OVERALL |
| Hole Diameter | 0.194 INCHES NOMINAL0.194 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 |
|---|---|
| P021-0236-03 PRIMARY | Hardigg Industries, Llc Div Hardigg Cases (USA) |
NSN 5310-01-520-4149 is a Washer,seal, manufactured by Hardigg Industries, Llc Div Hardigg Cases, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-520-4149 has 1 manufacturer part number on file: P021-0236-03 (Hardigg Industries, Llc Div Hardigg Cases).
Key specifications for P021-0236-03: Overall Height: 0.105 INCHES NOMINAL0.105 INCHES NOMINAL IN; Surface Treatment Document and Classification: SAE-AMS-00-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Style Designator: CONCAVE; Material Document and Classification: ASTM-A-666-96 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 7 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.