The Protector,rotor Hub Labyrinth Se, cataloged under National Stock Number 4920-01-161-8471, 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 Plc Div Defense (europe). Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-161-8471 |
| Primary Part Number | S3S13955000 |
| Item Name | Protector,rotor Hub Labyrinth Se |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rolls-Royce Plc Div Defense (europe) |
| Status | ACTIVE |
| FSC Application Data | F402 VECTORED THRUST ENGINE |
| General Characteristics Item Description | ALUMINUM ALLOY; 17.875 IN. DIA; 1.500 IN. WIDE IN |
| Functional Description | USED TO PROTECT THE LABYRINTH SEALS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S3S13955000 PRIMARY | Rolls-Royce Plc Div Defense (europe) (GBR) |
| PE28656 | Rolls-Royce Plc Div Defense (europe) (GBR) |
NSN 4920-01-161-8471 is a Protector,rotor Hub Labyrinth Se, manufactured by Rolls-Royce Plc Div Defense (europe), classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-161-8471 has 2 manufacturer part numbers on file: S3S13955000 (Rolls-Royce Plc Div Defense (europe)), PE28656 (Rolls-Royce Plc Div Defense (europe)).
Key specifications for S3S13955000: FSC Application Data: F402 VECTORED THRUST ENGINE; General Characteristics Item Description: ALUMINUM ALLOY; 17.875 IN. DIA; 1.500 IN. WIDE IN; Functional Description: USED TO PROTECT THE LABYRINTH SEALS; End Item Identification: AV-8A ACFT A. 3 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 4920-01-161-8471 has DEMIL Code B. 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.