The Washer,flat, cataloged under National Stock Number 5310-01-251-6372, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-251-6372 |
| Primary Part Number | 930088-125 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-B-613 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | NICKEL OVERALL |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY 268 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Thickness | 0.021 INCHES MINIMUM AND 0.041 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 |
|---|---|
| 930088-125 | Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp (USA) |
| Reference | Meaning |
|---|---|
| 930088-125 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-251-6372 is a Washer,flat, manufactured by Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-251-6372 has 1 manufacturer part number on file: 930088-125 (Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp).
Key specifications for 930088-125: Surface Treatment Document and Classification: QQ-N-290 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Material Document and Classification: QQ-B-613 FED SPEC 1ST MATERIAL RESPONSE OR QQ-B-626 FED SPEC 2ND MATERIAL RESPONSE OVERALL; 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.