The Fixture,engine Maintenance,aircr, cataloged under National Stock Number 4920-01-421-4766, 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 4 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 | 4920-01-421-4766 |
| Primary Part Number | PWA57866 |
| Item Name | Fixture,engine Maintenance,aircr |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Nominal Overall Length | 21.500 INCHES IN |
| Reference Data and Literature | SERD NO. 7719; T.O. 2J-F100-94 |
| Nominal Overall Height | 5.500 INCHES IN |
| Functional Description | FIXTURE CONTRAINT 3RD STAGE TURBINE DISK, FRONT; CONSTRAIN FOR INSPECTION OF THE O.D. AND I.D. FRONT SNAP DIAMETERS; INSPECTION USES TOOLS PWA57868INNER DIA. 7.520 IN. AND PWA57869 OUTER DIA. 15.606 IN.; HAS 6 SWING LEAF TYPE STRAP CLAMPS MOUNTED ON THE O.D. OFTHE FIXTURE, ALSO INCLUDES LIFT EYE HOLES 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 |
|---|---|
| PWA57866 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4920-01-421-4766 is a Fixture,engine Maintenance,aircr, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-421-4766 has 1 manufacturer part number on file: PWA57866 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA57866: Nominal Overall Length: 21.500 INCHES IN; Reference Data and Literature: SERD NO. 7719; T.O. 2J-F100-94; Nominal Overall Height: 5.500 INCHES IN; Special Features: COMPANY ITEM NAME-FIXTURE CONSTRAINT. 4 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.