The Adapter,clamp, cataloged under National Stock Number 2840-01-140-3890, 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 Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2840-01-140-3890 |
| Primary Part Number | 74A542104-2001 |
| Item Name | Adapter,clamp |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co |
| Status | ACTIVE |
| General Characteristics Item Description | CRES PER AMS 5343,CONDITION H1000; 0.540 IN. W; 0.540 IN. LG; 0.350 IN. THK 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 |
|---|---|
| 74A542104-2001 | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| 74A542104-2001 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 10163063 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A542104-2001 | 3/9 Design control — primary reference The Boeing Company Div Defense |
NSN 2840-01-140-3890 is a Adapter,clamp, manufactured by Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-140-3890 has 2 manufacturer part numbers on file: 74A542104-2001 (Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co), 74A542104-2001 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 74A542104-2001: General Characteristics Item Description: CRES PER AMS 5343,CONDITION H1000; 0.540 IN. W; 0.540 IN. LG; 0.350 IN. THK IN. 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.