The Spacer,front Turbin, cataloged under National Stock Number 2840-01-232-1956, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-232-1956 |
| Primary Part Number | 4066999 |
| Item Name | Spacer,front Turbin |
| 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 | MATL. NI.ALLOY |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 4066999 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4066999 | Union Machine Co of Lynn, Inc (USA) |
| 4066999 | Rtx Corporation Div Pratt & Whitney (USA) |
| 4066999 | Paramount Machine Company, Inc. Dba Paramount Machine Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 4066999 | 5/9 Secondary reference Alloy Specialties Llc |
| 4066999 | 5/9 Secondary reference Whitcraft South Windsor Llc Dba Pursuit Aerospace |
| 4066999 | 5/9 Secondary reference Ambel Precision Manufacturing Corporation |
| 4066999 | 5/9 Secondary reference Eagle Precision, Inc |
NSN 2840-01-232-1956 is a Spacer,front Turbin, 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 2840-01-232-1956 has 4 manufacturer part numbers on file: 4066999 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4066999 (Union Machine Co of Lynn, Inc), 4066999 (Rtx Corporation Div Pratt & Whitney), 4066999 (Paramount Machine Company, Inc. Dba Paramount Machine Co Inc).
Key specifications for 4066999: General Characteristics Item Description: MATL. NI.ALLOY; Special Features: JET ENGINE CRITICAL PART; End Item Identification: F100-PW-100/-200 ACFT ENGINES; Material: NICKEL ALLOY. 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.