The Washer,key, cataloged under National Stock Number 5310-00-700-7089, 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 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-700-7089 |
| Primary Part Number | 5139123 |
| 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 | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 1.493 INCHES MINIMUM AND 1.498 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 5.047 INCHES MINIMUM AND 5.078 INCHES MAXIMUM IN |
| Material Thickness | 0.210 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 3.380 INCHES MINIMUM AND 3.390 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 |
|---|---|
| 5139123 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0952047 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5310007007089 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 302038 | 5/9 Secondary reference Daf Trucks N.v. |
NSN 5310-00-700-7089 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 5310-00-700-7089 has 1 manufacturer part number on file: 5139123 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-135-7768. Verify interchangeability with system specifications before substitution.
Key specifications for 5139123: Internal Straight Key Width: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 1.493 INCHES MINIMUM AND 1.498 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 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.