The Washer,flat, cataloged under National Stock Number 5310-01-648-1703, 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 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-648-1703 |
| Primary Part Number | 2550W23002 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Color | YELLOW OVERALL |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 8 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.156 INCHES NOMINAL IN |
| Thickness | 0.036 INCHES MINIMUM AND 0.045 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 |
|---|---|
| 2550W23002 PRIMARY | Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp (USA) |
| 98023A112 | Mcmaster-Carr Supply Co (USA) |
NSN 5310-01-648-1703 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 5310-01-648-1703 has 2 manufacturer part numbers on file: 2550W23002 (Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp), 98023A112 (Mcmaster-Carr Supply Co).
Key specifications for 2550W23002: Overall Diameter: 0.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Color: YELLOW OVERALL; Surface Treatment: CHROMATE ZINC 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.