The Washer,flat, cataloged under National Stock Number 5310-01-500-6448, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Department of Defense Project Manager-Mobile Electric Power. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-500-6448 |
| Primary Part Number | 88-20033-26C |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM-A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.868 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5510, S32100 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5512, S34700 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 321 OR STEEL COMP 347 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Thickness | 0.054 INCHES MINIMUM AND 0.104 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 |
|---|---|
| 88-20033-26C PRIMARY | Department of Defense Project Manager-Mobile Electric Power (USA) |
NSN 5310-01-500-6448 is a Washer,flat, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-500-6448 has 1 manufacturer part number on file: 88-20033-26C (Department of Defense Project Manager-Mobile Electric Power).
Key specifications for 88-20033-26C: Surface Treatment Document and Classification: ASTM-A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.868 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN; Material Document and Classification: AMS 5510, S32100 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5512, S34700 ASSN STD 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.