The Washer,recessed, cataloged under National Stock Number 5310-01-034-6643, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-034-6643 |
| Primary Part Number | 12007758 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Style Designator | RECESSED |
| Outside Diameter | 5.060 INCHES MINIMUM AND 5.070 INCHES MAXIMUM IN |
| Material Thickness | 0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN |
| Recess Diameter | 2.103 INCHES MINIMUM AND 2.105 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 1.750 INCHES MINIMUM AND 1.752 INCHES MAXIMUM IN |
| Recess Angle | 45.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12007758 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-01-034-6643 is a Washer,recessed, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-034-6643 has 1 manufacturer part number on file: 12007758 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 12007758: Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM; Style Designator: RECESSED; Outside Diameter: 5.060 INCHES MINIMUM AND 5.070 INCHES MAXIMUM IN; Material Thickness: 0.400 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN. 9 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.