The Washer,lock, cataloged under National Stock Number 5310-01-484-0032, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Integrity Fasteners Oc, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-484-0032 |
| Primary Part Number | 37WS8 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Integrity Fasteners Oc, Inc. |
| Status | ACTIVE |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | AISI 4037 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.683 INCHES MAXIMUM IN |
| Material Thickness | 0.094 INCHES NOMINAL IN |
| Color | YELLOW OVERALL |
| Surface Treatment | ZINC OR CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.393 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 |
|---|---|
| 37WS8 PRIMARY | Integrity Fasteners Oc, Inc. (USA) |
| 18-09020-03 | Sierra Nevada Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 18-09020 | 7/1 Vendor item drawing reference Sierra Nevada Company, Llc |
| 37WS8 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-484-0032 is a Washer,lock, manufactured by Integrity Fasteners Oc, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-484-0032 has 2 manufacturer part numbers on file: 37WS8 (Integrity Fasteners Oc, Inc.), 18-09020-03 (Sierra Nevada Company, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-484-0035. Verify interchangeability with system specifications before substitution.
Key specifications for 37WS8: Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: AISI 4037 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.683 INCHES MAXIMUM IN; Material Thickness: 0.094 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.