The Heater,aircraft Engine Maintenan, cataloged under National Stock Number 4920-01-421-6867, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-421-6867 |
| Primary Part Number | PWA57886 |
| Item Name | Heater,aircraft Engine Maintenan |
| 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 7714 |
| Functional Description | USED TO HEAT THE LPT HUB PRIOR TO INSTALLING THE THIRD AND FOURTH STAGETURBINE DISK |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PWA57886 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 4920PL0829044 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4920-01-421-6867 is a Heater,aircraft Engine Maintenan, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-421-6867 has 1 manufacturer part number on file: PWA57886 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA57886: Reference Data and Literature: SERD 7714; Special Features: CONSISTS OF A FIBERGLASS SHELL WITH A LARGE HOLE IN THE CENTER WHICH ALLOWS THE HEATER TO BE INSTALLED OVER THE TURBINE HUB WITH PWA57653 OR PWA57810 ADAPTER; HEATER PWA 56322 HAS A SMALLER CENTER HOLE WHICH MAKES IT UNSUITABLE FOR THE -229 SERIES ENGINE; Functional Description: USED TO HEAT THE LPT HUB PRIOR TO INSTALLING THE THIRD AND FOURTH STAGETURBINE DISK; Part Name Assigned by Controlling Agency: HEATER. 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.
NSN 4920-01-421-6867 has DEMIL Code Q. 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.