The Washer,split, cataloged under National Stock Number 5310-01-040-9428, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-040-9428 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Distance Across Split Opening | 0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN |
| Style Designator | SPLIT |
| Material Document and Classification | AMS 5515 ASSN STD ALL MATERIAL RESPONSES OR AMS 5636 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.525 INCHES MINIMUM AND 0.525 INCHES MINIMUM AND 0.530 INCHES MAXIMUM0.530 INCHES MAXIMUM IN |
| Material Thickness | 0.006 INCHES MINIMUM AND 0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM0.026 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.378 INCHES MINIMUM AND 0.378 INCHES MINIMUM AND 0.382 INCHES MAXIMUM0.382 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 |
|---|---|
| 3030T68P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-040-9428 is a Washer,split, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-040-9428: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Distance Across Split Opening: 0.125 INCHES MINIMUM AND 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN; Style Designator: SPLIT; Material Document and Classification: AMS 5515 ASSN STD ALL MATERIAL RESPONSES OR AMS 5636 ASSN STD ALL MATERIAL RESPONSES OVERALL. 8 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.