The Lock,bearing, cataloged under National Stock Number 2840-00-345-3331, 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 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2840-00-345-3331 |
| Primary Part Number | 4037897 |
| Item Name | Lock,bearing |
| 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 AMS6415,6.240 IN. MIN,6.260 IN. MAX O/A DIA,1.120IN. MIN,1.150 IN. MAX O/A LG,35 TO 40 HARDNESS ROCKWELL C SCALE IN |
| 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 |
|---|---|
| 4037897 | Paramount Machine Company, Inc. Dba Paramount Machine Co Inc (USA) |
| 4037897 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4037897 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 2840PL0664243 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4037897 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 2840-00-345-3331 is a Lock,bearing, 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 2840-00-345-3331 has 3 manufacturer part numbers on file: 4037897 (Paramount Machine Company, Inc. Dba Paramount Machine Co Inc), 4037897 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4037897 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4037897: General Characteristics Item Description: STEEL AMS6415,6.240 IN. MIN,6.260 IN. MAX O/A DIA,1.120IN. MIN,1.150 IN. MAX O/A LG,35 TO 40 HARDNESS ROCKWELL C SCALE IN; End Item Identification: ENGINE,TURBOFAN,MODEL F100PW100. 1 specification is 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.