The Washer,flat, cataloged under National Stock Number 5310-00-231-5482, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-231-5482 |
| Primary Part Number | 1912386 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Borgwarner Pds (anderson), L.l.c. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | P-42-B,FSCM 16764 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.690 INCHES NOMINAL IN |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PHOSPHATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1065 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.005 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Thickness | 0.125 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 |
|---|---|
| 1912386 PRIMARY | Borgwarner Pds (anderson), L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| 1912386 | 5/9 Secondary reference General Motors Corp |
| 1912386 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
NSN 5310-00-231-5482 is a Washer,flat, manufactured by Borgwarner Pds (anderson), L.l.c., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-231-5482 has 1 manufacturer part number on file: 1912386 (Borgwarner Pds (anderson), L.l.c.).
Key specifications for 1912386: Surface Treatment Document and Classification: P-42-B,FSCM 16764 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.690 INCHES NOMINAL IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR. 10 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.