The Washer,key, cataloged under National Stock Number 5310-00-736-5478, 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 11 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 | 5310-00-736-5478 |
| Primary Part Number | 7365478 |
| 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 | 0.300 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.590 INCHES NOMINAL IN |
| Hardness Rating | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 3.000 INCHES NOMINAL IN |
| Features Provided | CASEHARDENED |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Material | STEEL COMP 1015 OR STEEL COMP 1020 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.520 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 |
|---|---|
| 7365478 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-00-736-5478 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 5310-00-736-5478 has 1 manufacturer part number on file: 7365478 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7365478: Internal Straight Key Width: 0.300 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.590 INCHES NOMINAL IN; Hardness Rating: 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Style Designator: KEY. 11 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.