The Washer,recessed, cataloged under National Stock Number 5310-01-054-9125, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-054-9125 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | AISI 8620 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN |
| Recess Depth | 0.033 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN |
| Recess Diameter | 0.635 INCHES NOMINAL IN |
| Material | STEEL COMP 8620 OVERALL |
| Hole Diameter | 0.320 INCHES NOMINAL 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 |
|---|---|
| 35-62319-0010-1 | 3/2 Design control — primary reference U.S. Government activity |
| 35-62319-0010-1 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 5310-01-054-9125 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-054-9125: Overall Height: 0.099 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: AISI 8620 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN. 7 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.