The Washer,flat, cataloged under National Stock Number 5310-01-265-2444, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. 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 | 5310-01-265-2444 |
| Primary Part Number | WP22-14 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Overall Diameter | 1.775 INCHES MINIMUM AND 1.785 INCHES MAXIMUM IN |
| Supplementary Features | MAGNAFLUX 100,PER MIL-I-6868 |
| Hardness Rating | 39.0 ROCKWELL C NOMINAL AND 43.0 ROCKWELL C MINIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.877 INCHES MINIMUM AND 0.881 INCHES MAXIMUM IN |
| Thickness | 0.099 INCHES MINIMUM AND 0.119 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 |
|---|---|
| WP22-14 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
NSN 5310-01-265-2444 is a Washer,flat, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-265-2444 has 1 manufacturer part number on file: WP22-14 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for WP22-14: Overall Diameter: 1.775 INCHES MINIMUM AND 1.785 INCHES MAXIMUM IN; Supplementary Features: MAGNAFLUX 100,PER MIL-I-6868; Hardness Rating: 39.0 ROCKWELL C NOMINAL AND 43.0 ROCKWELL C MINIMUM; 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.