The Support,gearbox, cataloged under National Stock Number 2840-01-009-9138, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-009-9138 |
| Primary Part Number | 745924 |
| Item Name | Support,gearbox |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,ROCKWELL HARDNESS C30 TO C38,USED ON TF33-100 ENGINE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 745924 | Rtx Corporation Div Pratt & Whitney (USA) |
| 745924 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 745924 | 5/9 Secondary reference Paramount Machine Company, Inc. Dba Paramount Machine Co Inc |
| 745924 | 5/9 Secondary reference Eti Tech Llc |
NSN 2840-01-009-9138 is a Support,gearbox, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-009-9138 has 2 manufacturer part numbers on file: 745924 (Rtx Corporation Div Pratt & Whitney), 745924 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 745924: General Characteristics Item Description: STEEL,ROCKWELL HARDNESS C30 TO C38,USED ON TF33-100 ENGINE; Criticality Code Justification: FEAT; Special Features: FORM,FIT,FUNCTION. 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 2840-01-009-9138 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.