The Washer,key, cataloged under National Stock Number 5310-00-960-5077, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-960-5077 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Internal Straight Key Width | 0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.064 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 1.082 INCHES MINIMUM AND 1.102 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.674 INCHES MINIMUM AND 0.694 INCHES MAXIMUM IN |
| Material Thickness | 0.027 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN |
| External Straight Key Width | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| External Key Quantity | 7 |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 1010 OR STEEL COMP 1035 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 0.501 INCHES MINIMUM AND 0.511 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 |
| Reference | Meaning |
|---|---|
| 5310PL2211930 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS27111-5 | 2/2 Government specification standardization U.S. Government activity |
| 10121891 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-00-960-5077 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-960-5077: Internal Straight Key Width: 0.112 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.064 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Distance Including Keys: 1.082 INCHES MINIMUM AND 1.102 INCHES MAXIMUM IN. 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.