The Nut,plain,assembled Washer, cataloged under National Stock Number 5310-01-144-3121, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Borgwarner Pds (anderson), L.l.c.. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-144-3121 |
| Primary Part Number | 1979365 |
| Item Name | Nut,plain,assembled Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Borgwarner Pds (anderson), L.l.c. |
| Status | ACTIVE |
| Washer Outside Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Width Across Flats | 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | G-4342-M,CODE 20D72,FSCM 16764 MFR REF ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Height | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN |
| Surface Treatment | ZINC AND DICHROMATE OVERALL |
| Nut Style | CONICAL |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 1050 WASHER |
| Material | STEEL COMP 1020 NUT |
| 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 |
|---|---|
| 1979365 PRIMARY | Borgwarner Pds (anderson), L.l.c. (USA) |
| 5HA181 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 5310011443121 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 1979365 | 5/1 Secondary reference Terex Equipment Ltd Div Construction Equipment |
| 1979365 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| 5HA181 | 5/9 Secondary reference Oshkosh Corp |
NSN 5310-01-144-3121 is a Nut,plain,assembled Washer, manufactured by Borgwarner Pds (anderson), L.l.c., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-144-3121 has 2 manufacturer part numbers on file: 1979365 (Borgwarner Pds (anderson), L.l.c.), 5HA181 (Oshkosh Defense Llc).
Key specifications for 1979365: Overall Height: 0.200 INCHES NOMINAL IN; Washer Outside Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Width Across Flats: 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Surface Treatment Document and Classification: G-4342-M,CODE 20D72,FSCM 16764 MFR REF ALL TREATMENT RESPONSES OVERALL. 13 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.