The Adapter Assembly,interface Devic, cataloged under National Stock Number 4920-01-468-5170, 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 6 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 | 4920-01-468-5170 |
| Primary Part Number | PWA71977 |
| Item Name | Adapter Assembly,interface Devic |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Unpackaged Unit Length | 2.000 INCHES NOMINAL IN |
| Supplementary Features | ADAPTER IS USED WITH THE TURBINE DISK INSTALLED IN PWA71975 FIXTURE MOUNTEDON PWA71990 RECIPROCATING POLISH MACHINE. ADAPTER CONSISTS OF A TOOL BODY HAVING AN ARM CONNECTOR AT EACH END AND A CONTROLLED TRAVEL HINGE PLATES FOR RETAINING DOUBLE SIDED TAPE AND MICRO-MESH (600 GRIT) POLISHING ABRASIVE |
| Reference Data and Literature | SERD NUMBER 8538 |
| Unpackaged Unit Width | 2.000 INCHES NOMINAL IN |
| Unpackaged Unit Height | 8.000 INCHES NOMINAL IN |
| Functional Description | USED TO POLISH 3RD STAGE TURBINE DISK P/N4084103 TO RESTORE DISK BROACHSLOT BOTTOM SURFACE FOR EDDY CURRENT INSPECTION (ECI) |
| 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 |
|---|---|
| PWA71977 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4920-01-468-5170 is a Adapter Assembly,interface Devic, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-468-5170 has 1 manufacturer part number on file: PWA71977 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA71977: Unpackaged Unit Length: 2.000 INCHES NOMINAL IN; Supplementary Features: ADAPTER IS USED WITH THE TURBINE DISK INSTALLED IN PWA71975 FIXTURE MOUNTEDON PWA71990 RECIPROCATING POLISH MACHINE. ADAPTER CONSISTS OF A TOOL BODY HAVING AN ARM CONNECTOR AT EACH END AND A CONTROLLED TRAVEL HINGE PLATES FOR RETAINING DOUBLE SIDED TAPE AND MICRO-MESH (600 GRIT) POLISHING ABRASIVE; Reference Data and Literature: SERD NUMBER 8538; Unpackaged Unit Width: 2.000 INCHES NOMINAL IN. 6 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 4920-01-468-5170 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.