The Inspection Master,turbine Wheel, cataloged under National Stock Number 4920-01-237-5987, 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 Rtx Corporation Div Pratt & Whitney. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-237-5987 |
| Primary Part Number | 163139-1 |
| Item Name | Inspection Master,turbine Wheel |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| FSC Application Data | EDDY CURRENT DETECTION SYSTEM,NORTEC MODEL NDT-25L-S3 |
| Overall Diameter | 6.500 INCHES NOMINAL 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 |
|---|---|
| 163139-1 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
NSN 4920-01-237-5987 is a Inspection Master,turbine Wheel, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-237-5987 has 1 manufacturer part number on file: 163139-1 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 163139-1: Overall Height: 2.500 INCHES NOMINAL IN; FSC Application Data: EDDY CURRENT DETECTION SYSTEM,NORTEC MODEL NDT-25L-S3; Overall Diameter: 6.500 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: TURBINE WHEEL INSPECTION MASTER. 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.
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.