The Washer,key, cataloged under National Stock Number 5310-01-067-6979, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-067-6979 |
| Primary Part Number | A12653-001-257 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| External Straight Key Length | 0.173 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.395 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A167 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN |
| Peening Key Length | 0.463 INCHES NOMINAL IN |
| Material Thickness | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN |
| External Straight Key Width | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| External Key Quantity | 5 |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.323 INCHES MINIMUM AND 0.333 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 |
|---|---|
| A12653-001-257 PRIMARY | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| A12653.001.257 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-067-6979 is a Washer,key, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-067-6979 has 1 manufacturer part number on file: A12653-001-257 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-135-8125, 5310-01-449-7965, 5310-01-669-8721. Verify interchangeability with system specifications before substitution.
Key specifications for A12653-001-257: External Straight Key Length: 0.173 INCHES NOMINAL IN; Overall Distance Including Keys: 1.395 INCHES MINIMUM AND 1.405 INCHES MAXIMUM IN; Material Document and Classification: ASTM A167 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN. 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.