The Washer,recessed, cataloged under National Stock Number 5310-01-275-3328, 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7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-275-3328 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | AMS-5604,COND A ASSN STD SINGLE MATERIAL RESPONSE OR AMS-5643,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.720 INCHES NOMINAL IN |
| Material Thickness | 0.125 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 630 OVERALL |
| Hole Diameter | 0.3285 INCHES MINIMUM AND 0.3290 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 |
|---|---|
| 100429-8 | 3/2 Design control — primary reference U.S. Government activity |
| 100429-8 | 3/9 Design control — primary reference L3harris Technologies, Inc. |
NSN 5310-01-275-3328 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-275-3328: Style Designator: RECESSED BOTH SIDES; Material Document and Classification: AMS-5604,COND A ASSN STD SINGLE MATERIAL RESPONSE OR AMS-5643,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.720 INCHES NOMINAL IN; Material Thickness: 0.125 INCHES NOMINAL 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.