The Washer,lock, cataloged under National Stock Number 5310-01-226-9490, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 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 | 5310-01-226-9490 |
| Primary Part Number | 5338739-001 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416, TY 2, CL 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-87115, CL 1 MIL SPEC 2ND TREATMENT RESPONSE OR MIL-C-83488, TY 2, CL 2 MIL SPEC 3RD TREATMENT RESPONSE OVERALL |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 5.8 MILLIMETERS NOMINAL MM |
| Material Thickness | 0.7 MILLIMETERS MINIMUM AND 0.9 MILLIMETERS MAXIMUM MM |
| Surface Treatment | CADMIUM OR CHROMATE OR ZINC AND CHROMATE OR ALUMINUM ALLOY OR CHROMATE OVERALL |
| Material | STEEL COMP 1075 OVERALL |
| Hole Diameter | 3.1 MILLIMETERS MINIMUM AND 3.4 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 5338739-001 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5310-01-226-9490 is a Washer,lock, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-226-9490 has 1 manufacturer part number on file: 5338739-001 (Naval Sea Systems Command).
Key specifications for 5338739-001: Surface Treatment Document and Classification: QQ-P-416, TY 2, CL 2 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-87115, CL 1 MIL SPEC 2ND TREATMENT RESPONSE OR MIL-C-83488, TY 2, CL 2 MIL SPEC 3RD TREATMENT RESPONSE OVERALL; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 9 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.