The Washer,key, cataloged under National Stock Number 5310-00-798-3089, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-798-3089 |
| Primary Part Number | 7983089 |
| 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 | 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.563 INCHES NOMINAL IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN |
| Features Provided | CASEHARDENED |
| Material Thickness | 0.1290 INCHES MINIMUM AND 0.1390 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.401 INCHES MINIMUM AND 1.411 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 |
|---|---|
| 7983089 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-00-798-3089 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 5310-00-798-3089 has 1 manufacturer part number on file: 7983089 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7983089: Internal Straight Key Width: 0.230 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.563 INCHES NOMINAL IN; Style Designator: KEY; Material Document and Classification: QQ-S-636 FED SPEC SINGLE MATERIAL RESPONSE 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.