The Washer,flat, cataloged under National Stock Number 5310-01-616-9122, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 8 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 | 5310-01-616-9122 |
| Primary Part Number | 1171013 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Overall Diameter | 0.563 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Nondefinitive Spec/std Data | SMALL STYLE AND FLAT TYPE AND 0.280 POUNDS WEIGHT AND 18-8 GRADE LBS |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.250 INCHES NOMINAL IN |
| Thickness | 0.040 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 |
|---|---|
| 1171013 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
NSN 5310-01-616-9122 is a Washer,flat, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-616-9122 has 1 manufacturer part number on file: 1171013 (Fastenal Company Dba Fastenal Co).
Key specifications for 1171013: Overall Diameter: 0.563 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Nondefinitive Spec/std Data: SMALL STYLE AND FLAT TYPE AND 0.280 POUNDS WEIGHT AND 18-8 GRADE LBS; Special Features: 0.250 INCH NOMINAL SIZE IN. 8 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.