The Washer,key, cataloged under National Stock Number 5310-00-533-8771, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-533-8771 |
| Primary Part Number | 6739182 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Internal Straight Key Width | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 1.160 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 3.155 INCHES NOMINAL IN |
| Heat Treatment | AS FABRICATED |
| Style Designator | KEY |
| Material Document and Classification | AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.835 INCHES MINIMUM AND 2.845 INCHES MAXIMUM IN |
| Material Thickness | 0.156 INCHES NOMINAL IN |
| External Straight Key Width | 0.125 INCHES NOMINAL IN |
| External Key Quantity | 9 |
| Surface Treatment | ANODIZE OVERALL |
| Material | STEEL COMP 302 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 2.531 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 |
NSN 5310-00-533-8771 is a Washer,key, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-533-8771 has 2 manufacturer part numbers on file: 6739182 (Allison Transmission Inc Dba Allison Transmission, Inc), 6739182 (General Motors Corp).
Key specifications for 6739182: Internal Straight Key Width: 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 1.160 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN; Overall Distance Including Keys: 3.155 INCHES NOMINAL IN; Heat Treatment: AS FABRICATED. 14 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.