The Washer,recessed, cataloged under National Stock Number 5310-01-256-5234, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-256-5234 |
| Primary Part Number | 23008017 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Top Recess Diameter | 0.230 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Bottom Recess Diameter | 0.230 INCHES NOMINAL IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| Top Recess Angle | 90.0 DEGREES NOMINAL |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | AMS 6357 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6350 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6358 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.580 INCHES NOMINAL IN |
| Material Thickness | 0.082 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN |
| Bottom Recess Angle | 90.0 DEGREES NOMINAL |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 8740 OVERALL |
| Hole Diameter | 0.196 INCHES MINIMUM AND 0.206 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 |
| Part Number | Manufacturer |
|---|---|
| 23008017 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 23008017 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| E23008017 | 5/9 Secondary reference Boeing Distribution, Inc. |
| E23008017 | 5/9 Secondary reference Extex, Ltd. |
NSN 5310-01-256-5234 is a Washer,recessed, manufactured by Rolls-Royce Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-256-5234 has 1 manufacturer part number on file: 23008017 (Rolls-Royce Corporation).
Key specifications for 23008017: Top Recess Diameter: 0.230 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Bottom Recess Diameter: 0.230 INCHES NOMINAL IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM. 13 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.