The Washer,key, cataloged under National Stock Number 5310-01-342-0285, 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 | 5310-01-342-0285 |
| Primary Part Number | 9399997 |
| 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 | 0.922 INCHES NOMINAL IN |
| Internal Prebent Key Width | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 2.980 INCHES MINIMUM AND 3.020 INCHES MAXIMUM IN |
| Material Thickness | 0.049 INCHES NOMINAL IN |
| Internal Prebent Key Length | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Color | GREEN OVERALL |
| Surface Treatment | PAINT OVERALL |
| Material | STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL |
| Hole Diameter | 1.490 INCHES MINIMUM AND 1.530 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 |
|---|---|
| 9399997 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-342-0285 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 5310-01-342-0285 has 1 manufacturer part number on file: 9399997 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 9399997: Distance From Centerline to Inside of Prebent Key: 0.922 INCHES NOMINAL IN; Internal Prebent Key Width: 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL. 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.