The Fixture,machining,aircraft Engin, cataloged under National Stock Number 4920-01-435-0370, 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 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 | 4920-01-435-0370 |
| Primary Part Number | PWA71577 |
| Item Name | Fixture,machining,aircraft Engin |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Reference Data and Literature | SERD NO. 8057 |
| Functional Description | CONSISTS OF AN ALUMINUM BASE AND 6 STRAP CLAMPS ALONG WITH 8 ADJUSTABLEOUTER SUPPORTS, 4 DOWEL PINS POSITION THE AFT FLANGE, ESTABLISHING THE CENTRAL AXIS; LOCATES THE COMBUSTION CHAMBER INNER ASSEMBLY AFT O.D. AND SUPPORT THE FORWARD O.D. DURING MACHINING OF THE FORWARD FACE; THE FIXTURE WILL BE USED ON A VTL; THE REOPERATED COMBUSTION CHAMBER ASSY WILL IMPROVE TURBINE PERFORMANCE BY REDUCING HOT GAS LEAKAGE AROUND THE 1ST STAGE TURBINE VANES |
| 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 |
|---|---|
| PWA71577 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4920-01-435-0370 is a Fixture,machining,aircraft Engin, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-435-0370 has 1 manufacturer part number on file: PWA71577 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA71577: Reference Data and Literature: SERD NO. 8057; Special Features: COMPANY ITEM NAME-FIXTURE MACHINE COMBUSTION CHAMBER, INNER ASSEMBLY FORWARD FACE; Functional Description: CONSISTS OF AN ALUMINUM BASE AND 6 STRAP CLAMPS ALONG WITH 8 ADJUSTABLEOUTER SUPPORTS, 4 DOWEL PINS POSITION THE AFT FLANGE, ESTABLISHING THE CENTRAL AXIS; LOCATES THE COMBUSTION CHAMBER INNER ASSEMBLY AFT O.D. AND SUPPORT THE FORWARD O.D. DURING MACHINING OF THE FORWARD FACE; THE FIXTURE WILL BE USED ON A VTL; THE REOPERATED COMBUSTION CHAMBER ASSY WILL IMPROVE TURBINE PERFORMANCE BY REDUCING HOT GAS LEAKAGE AROUND THE 1ST STAGE TURBINE VANES; End Item Identification: F100-PW-229. 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.