The Washer,key, cataloged under National Stock Number 5310-00-209-4151, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-209-4151 |
| Primary Part Number | 5222574 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.438 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| External Prebent Key Length | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 1.016 INCHES MINIMUM AND 1.047 INCHES MAXIMUM IN |
| Material Thickness | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| External Key Quantity | 1 |
| External Prebent Key Width | 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Material | COPPER ALLOY 268 OVERALL |
| Hole Diameter | 0.472 INCHES MINIMUM AND 0.480 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 |
|---|---|
| 5222574 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 5222574 | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| 200820162-01 | 5/2 Secondary reference U.S. Government activity |
| 342707 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-209-4151 is a Washer,key, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-209-4151 has 2 manufacturer part numbers on file: 5222574 (U S Army Tank Automotive Command Amsta-Im-Mm), 5222574 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 5222574: Distance From Centerline to Inside of Prebent Key: 0.438 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN; External Prebent Key Length: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL. 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.