The Washer,key, cataloged under National Stock Number 5310-00-115-9047, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Am General Llc. Government technical data includes 10 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-115-9047 |
| Primary Part Number | 990145 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| Internal Straight Key Width | 0.184 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.946 INCHES NOMINAL IN |
| Overall Distance Including Keys | 3.120 INCHES NOMINAL IN |
| Style Designator | KEY |
| Outside Diameter | 2.590 INCHES NOMINAL IN |
| Material Thickness | 0.089 INCHES NOMINAL IN |
| External Straight Key Width | 0.500 INCHES NOMINAL IN |
| External Key Quantity | 8 |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.992 INCHES MINIMUM AND 2.007 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 |
NSN 5310-00-115-9047 is a Washer,key, manufactured by Am General Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-115-9047 has 2 manufacturer part numbers on file: 990145 (Am General Llc), 11657860 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-463-1467. Verify interchangeability with system specifications before substitution.
Key specifications for 990145: Internal Straight Key Width: 0.184 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.946 INCHES NOMINAL IN; Overall Distance Including Keys: 3.120 INCHES NOMINAL IN; Style Designator: KEY. 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.