The Mask,plasma Spray, cataloged under National Stock Number 4920-01-487-2137, 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 Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 3 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 | 4920-01-487-2137 |
| Primary Part Number | PWA72485 |
| Item Name | Mask,plasma Spray |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Overall Diameter | 16.000 INCHES NOMINAL IN |
| Reference Data and Literature | SERD NO. 9146 |
| Functional Description | USED FOR PLASMA SPRAY REPAIR OF DIFFUSER CASE |
| 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 |
|---|---|
| PWA72485 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4920-01-487-2137 is a Mask,plasma Spray, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-487-2137 has 1 manufacturer part number on file: PWA72485 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA72485: Overall Diameter: 16.000 INCHES NOMINAL IN; Reference Data and Literature: SERD NO. 9146; Overall Width: 1.000 INCHES NOMINAL IN; Special Features: MASK IS REQUIRED FOR PLASMA SPRAY REPAIR OF P/N 4083830 DIFFUSER CASE HAVING WORN LUG DIAMETER. MASK IS USED WITH THE DIFFUSER CASE INSTALLED FORWARD END UP ON PWA71284 FIXTURE. MASK PROTECTS THE CASE FROM UNAUTHORIZED GRIT/PLASMA OVERSPRAY BY SEALING OFF THE FORWARD END OF THE CASE AND INTERRUPTED DIAMETER BETWEEN LUGS DOWN TO COMPANION PWA72484 MASK THAT COVERS THE LOWER ID OF THE CASE. 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.
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.