The Washer,recessed, cataloged under National Stock Number 5310-00-515-8766, 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 11 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 | 5310-00-515-8766 |
| Primary Part Number | 5158766 |
| 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 |
| Surface Finish | 32.0 MICROINCHES BOTTOM |
| Surface Finish | 32.0 MICROINCHES OUTER |
| Surface Finish | 32.0 MICROINCHES TOP |
| Style Designator | RECESSED |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.257 INCHES MINIMUM AND 1.262 INCHES MAXIMUM IN |
| Material Thickness | 0.0620 INCHES MINIMUM AND 0.0627 INCHES MAXIMUM IN |
| Recess Diameter | 1.078 INCHES MINIMUM AND 1.083 INCHES MAXIMUM IN |
| Material | STEEL COMP 1035 OVERALL |
| Hole Diameter | 1.016 INCHES MINIMUM AND 1.021 INCHES MAXIMUM IN |
| Recess Angle | 90.0 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 |
|---|---|
| 5158766 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-00-515-8766 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 5310-00-515-8766 has 1 manufacturer part number on file: 5158766 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 5158766: Surface Finish: 32.0 MICROINCHES BOTTOM; Surface Finish: 32.0 MICROINCHES OUTER; Surface Finish: 32.0 MICROINCHES TOP; Style Designator: RECESSED. 11 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.