The Washer,recessed, cataloged under National Stock Number 5310-00-182-4139, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-182-4139 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Top Recess Diameter | 1.655 INCHES MINIMUM AND 1.675 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bottom Recess Diameter | 1.655 INCHES MINIMUM AND 1.675 INCHES MAXIMUM IN |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Material Thickness | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 4140 OVERALL |
| Hole Diameter | 1.530 INCHES MINIMUM AND 1.550 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 |
|---|---|
| AR369 | 3/2 Design control — primary reference U.S. Government activity |
| 5310001824139 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 5310001824139 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5310-00-182-4139 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-182-4139: Top Recess Diameter: 1.655 INCHES MINIMUM AND 1.675 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Bottom Recess Diameter: 1.655 INCHES MINIMUM AND 1.675 INCHES MAXIMUM IN; Top Recess Angle: 90.0 DEGREES NOMINAL. 12 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.