The Washer,shouldered and Recessed, cataloged under National Stock Number 5310-01-357-1649, 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10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-357-1649 |
| Item Name | Washer,shouldered and Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Shoulder Height | 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Hardness Rating | 53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED AND RECESSED |
| Material Document and Classification | AMS 6419 COMP 300M ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.777 INCHES MINIMUM AND 0.807 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.499 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Recess Diameter | 0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Material | STEEL UNS K44315 OVERALL |
| Hole Diameter | 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Recess Angle | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM |
| 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 |
|---|---|
| 757361-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-357-1649 is a Washer,shouldered and Recessed, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-357-1649: Overall Height: 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN; Shoulder Height: 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN; Hardness Rating: 53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM; Style Designator: SHOULDERED AND RECESSED. 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.