The Washer,key, cataloged under National Stock Number 5310-00-528-7386, 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 9 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 | 5310-00-528-7386 |
| Primary Part Number | 5287386 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Internal Straight Key Width | 0.235 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.4665 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-640,CANC FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-633,CANC FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-633,CANC FED SPEC 3RD MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.0625 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Material | STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.255 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 |
|---|---|
| 5287386 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-00-528-7386 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 5310-00-528-7386 has 1 manufacturer part number on file: 5287386 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 5287386: Internal Straight Key Width: 0.235 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.4665 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: QQ-S-640,CANC FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-633,CANC FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-633,CANC FED SPEC 3RD MATERIAL RESPONSE OVERALL. 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.
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.