The Washer,keyway, cataloged under National Stock Number 5310-01-181-3507, 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 | 5310-01-181-3507 |
| Primary Part Number | 12317046 |
| Item Name | Washer,keyway |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Distance From Centerline to Bottom of Internal Keyway | 0.276 INCHES NOMINAL IN |
| Internal Keyway Width | 0.253 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | QQ-S-626,CONDTN NORMALIZED FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A322 OR A331,CONDTN N ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.755 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| Hole Diameter | 0.388 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 |
|---|---|
| 12317046 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5310-01-181-3507 is a Washer,keyway, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-181-3507 has 1 manufacturer part number on file: 12317046 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12317046: Distance From Centerline to Bottom of Internal Keyway: 0.276 INCHES NOMINAL IN; Internal Keyway Width: 0.253 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM. 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.