The Washer,lock, cataloged under National Stock Number 5310-00-279-4201, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Texas Instruments Inc Metallurgical Materials Div. 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 | 5310-00-279-4201 |
| Primary Part Number | 7598-53 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Texas Instruments Inc Metallurgical Materials Div |
| Status | ACTIVE |
| Surface Treatment Document and Classification | 10-9 TY 2,CL 1,FSCM 73803 MFR REF 1ST TREATMENT RESPONSE AND 579,FSCM 73803 MFR REF 2ND TREATMENT RESPONSE OVERALL |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.580 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN |
| Material Thickness | 0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.440 INCHES MINIMUM AND 0.448 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 |
|---|---|
| 7598-53 PRIMARY | Texas Instruments Inc Metallurgical Materials Div (USA) |
NSN 5310-00-279-4201 is a Washer,lock, manufactured by Texas Instruments Inc Metallurgical Materials Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-279-4201 has 1 manufacturer part number on file: 7598-53 (Texas Instruments Inc Metallurgical Materials Div).
Key specifications for 7598-53: Surface Treatment Document and Classification: 10-9 TY 2,CL 1,FSCM 73803 MFR REF 1ST TREATMENT RESPONSE AND 579,FSCM 73803 MFR REF 2ND TREATMENT RESPONSE OVERALL; Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.580 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN; Material Thickness: 0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN. 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.