The Washer,split, cataloged under National Stock Number 5310-01-121-1709, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-121-1709 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance Across Split Opening | 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN |
| Style Designator | SPLIT |
| Material Document and Classification | QQ-A-225/6,TEMPER T851 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.295 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| Material Thickness | 0.105 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE AND DICHROMATE OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Hole Diameter | 0.089 INCHES MINIMUM AND 0.095 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 |
|---|---|
| 10109380 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 01-01163 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-121-1709 is a Washer,split, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-121-1709: Surface Treatment Document and Classification: MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance Across Split Opening: 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN; Style Designator: SPLIT; Material Document and Classification: QQ-A-225/6,TEMPER T851 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.