The Washer,thrust, cataloged under National Stock Number 5310-01-157-4674, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Airlines. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-157-4674 |
| Primary Part Number | B497691 |
| Item Name | Washer,thrust |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rolls-Royce Airlines |
| Status | ACTIVE |
| General Characteristics Item Description | 1.266 IN. MIN,1.271 IN. MAX LG; 0.190 IN. MIN,0.200 IN. MAX THK 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 |
|---|---|
| B497691 | Rolls-Royce Airlines (GBR) |
| Reference | Meaning |
|---|---|
| B497691 | 3/9 Design control — primary reference Rolls-Royce Inc |
| B497691 | 5/9 Secondary reference Rolls-Royce Plc Div Defense (europe) |
NSN 5310-01-157-4674 is a Washer,thrust, manufactured by Rolls-Royce Airlines, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-157-4674 has 1 manufacturer part number on file: B497691 (Rolls-Royce Airlines).
Key specifications for B497691: General Characteristics Item Description: 1.266 IN. MIN,1.271 IN. MAX LG; 0.190 IN. MIN,0.200 IN. MAX THK IN; End Item Identification: ENGINE MODEL F402. 1 specification is 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.