The Base,rear Nozzle Sprocket, cataloged under National Stock Number 4920-01-172-9226, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Rolls-Royce Defense Services Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-172-9226 |
| Primary Part Number | S3S17169000 |
| Item Name | Base,rear Nozzle Sprocket |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rolls-Royce Defense Services Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 3.500 IN. L; 4.000 IN. W; 5.000 IN. H; MILD STEEL; PHOSPHATE IN |
| Functional Description | USED TO PRESS ROLLER BEARING INNER MEMBER AND DISTANCE PIECE FROM REAR NOZZLE SPROCKET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S3S17169000 PRIMARY | Rolls-Royce Defense Services Inc (USA) |
| Reference | Meaning |
|---|---|
| S3S17169000 | 5/9 Secondary reference Rolls-Royce Corporation |
| S3S17169000 | 5/9 Secondary reference Rolls-Royce Plc Div Defense (europe) |
NSN 4920-01-172-9226 is a Base,rear Nozzle Sprocket, manufactured by Rolls-Royce Defense Services Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-172-9226 has 1 manufacturer part number on file: S3S17169000 (Rolls-Royce Defense Services Inc).
Key specifications for S3S17169000: General Characteristics Item Description: 3.500 IN. L; 4.000 IN. W; 5.000 IN. H; MILD STEEL; PHOSPHATE IN; Functional Description: USED TO PRESS ROLLER BEARING INNER MEMBER AND DISTANCE PIECE FROM REAR NOZZLE SPROCKET; End Item Identification: F402 (AV-8A) A. 2 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.
NSN 4920-01-172-9226 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.