The Washer,key, cataloged under National Stock Number 5310-00-679-9814, 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 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-679-9814 |
| Primary Part Number | 8756256 |
| 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 | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.511 INCHES NOMINAL IN |
| Hardness Rating | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN |
| Material Thickness | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Material | STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.266 INCHES MINIMUM AND 1.297 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 |
|---|---|
| 8756256 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 8756256 | Goriziane Group Spa (ITA) |
| 8756256 | Fnss Savunma Sistemleri Anonim Sirketi (TUR) |
| Reference | Meaning |
|---|---|
| 5310006799814 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5310PL0898704 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 10088213 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-00-679-9814 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 5310-00-679-9814 has 3 manufacturer part numbers on file: 8756256 (U S Army Tank Automotive Command Amsta-Im-Mm), 8756256 (Goriziane Group Spa), 8756256 (Fnss Savunma Sistemleri Anonim Sirketi).
Key specifications for 8756256: Internal Straight Key Width: 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.511 INCHES NOMINAL IN; Hardness Rating: 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 91.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM; 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.