The Washer,recessed, cataloged under National Stock Number 5310-01-049-4087, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-049-4087 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ESS001,FSCM 81873 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | RECESSED |
| Material Document and Classification | AMS 5659 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5629 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5622 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5643 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.8640 INCHES MINIMUM AND 0.8655 INCHES MAXIMUM IN |
| Recess Depth | 0.015 INCHES NOMINAL IN |
| Recess Diameter | 0.750 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 155000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP XM-12 OR STEEL COMP XM-13 OR STEEL COMP 630 OVERALL |
| Hole Diameter | 0.438 INCHES MINIMUM AND 0.439 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 |
|---|---|
| 41002498 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-049-4087 is a Washer,recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-049-4087: Overall Height: 0.098 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ESS001,FSCM 81873 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Style Designator: RECESSED; Material Document and Classification: AMS 5659 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5629 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5622 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5643 ASSN STD 3RD MATERIAL RESPONSE OVERALL. 10 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.