The Washer,flat, cataloged under National Stock Number 5310-01-549-7715, 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 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-01-549-7715 |
| Primary Part Number | 0153660 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | CANCELLED |
| Overall Diameter | 12.0 MILLIMETERS NOMINAL MM |
| Cross-Sectional Shape Style | BLANK RECTANGULAR |
| Color | BLUE OVERALL |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 6.4 MILLIMETERS NOMINAL MM |
| Thickness | 1.6 MILLIMETERS NOMINAL MM |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 0153660 | Fastenal Company (USA) |
| 3006005 | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA) |
| 0153660 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
| 43981 | Barnes Group Inc. Dba Barnes Distribution (USA) |
| Reference | Meaning |
|---|---|
| 3001311 | 5/9 Secondary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
| 12759-00370 | C/1 Advisory reference — outside the item-of-supply concept Fastenal Company Dba Fastenal Co |
NSN 5310-01-549-7715 is a Washer,flat, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-01-549-7715 has 4 manufacturer part numbers on file: 0153660 (Fastenal Company), 3006005 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 0153660 (Fastenal Company Dba Fastenal Co), 43981 (Barnes Group Inc. Dba Barnes Distribution).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-606-2484. Verify interchangeability with system specifications before substitution.
Key specifications for 0153660: Overall Diameter: 12.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: BLANK RECTANGULAR; Color: BLUE OVERALL; Special Features: M6 X 12 X 1.4 BLUE ZINC HARDENED FLAT WASHER. 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.
NSN 5310-01-549-7715 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.