The Washer,recessed, cataloged under National Stock Number 5310-00-938-4232, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-938-4232 |
| Primary Part Number | 6850984 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Radius | 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN |
| Style Designator | RECESSED |
| Material Document and Classification | AMS6370 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Recess Diameter | 0.600 INCHES MINIMUM AND 0.605 INCHES MAXIMUM IN |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.385 INCHES MINIMUM AND 0.395 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 |
|---|---|
| 6850984 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6850984 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5310-00-938-4232 is a Washer,recessed, manufactured by Rolls-Royce Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-938-4232 has 1 manufacturer part number on file: 6850984 (Rolls-Royce Corporation).
Key specifications for 6850984: Overall Height: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Radius: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN; Style Designator: RECESSED. 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.