The Protector,accessory Gearbox, cataloged under National Stock Number 4920-01-164-9517, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-164-9517 |
| Primary Part Number | S3S17195000 |
| Item Name | Protector,accessory Gearbox |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rolls-Royce Defense Services Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 5.750 IN. DIA; 1.000 IN. L; ALUMINUM ALLOY; ANODIZED,RED PAINT IN |
| Functional Description | PROTECTS LOCATION DIAMETER OF ACCESSORY GEARBOX |
| 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 |
|---|---|
| S3S17195000 PRIMARY | Rolls-Royce Defense Services Inc (USA) |
| S3S17195000 | Rolls-Royce Plc Div Defense (europe) (GBR) |
| Reference | Meaning |
|---|---|
| S3S17195000 | 5/9 Secondary reference Rolls-Royce Corporation |
NSN 4920-01-164-9517 is a Protector,accessory Gearbox, manufactured by Rolls-Royce Defense Services Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-164-9517 has 2 manufacturer part numbers on file: S3S17195000 (Rolls-Royce Defense Services Inc), S3S17195000 (Rolls-Royce Plc Div Defense (europe)).
Key specifications for S3S17195000: General Characteristics Item Description: 5.750 IN. DIA; 1.000 IN. L; ALUMINUM ALLOY; ANODIZED,RED PAINT IN; Functional Description: PROTECTS LOCATION DIAMETER OF ACCESSORY GEARBOX; 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 4920-01-164-9517 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.