The Piston Assembly,main Landing Gea, cataloged under National Stock Number 1620-01-267-0442, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-267-0442 |
| Primary Part Number | 74A410674-1001 |
| Item Name | Piston Assembly,main Landing Gea |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| General Characteristics Item Description | BOLT SHAPED; CIRCULAR HEAD ONE END; 0.750-16 UNJF-3A THREADS OTHER END; 0.500 IN. ID BORE APPROX 7.000 IN. DEEP; 0.748 IN. OD A |
| 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 |
|---|---|
| 74A410674-1001 | Hdi Landing Gear Usa Inc (USA) |
| 74A410674-1001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A410674-1001 | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| 74A410674-1001 | A. J. Associates Manufacturing & Engineering Co. Inc. (USA) |
| 74A410674-1001 | Nassau Tool Works, Inc (USA) |
| 74A410674-1001 | Safran Landing Systems Canada Inc. (CAN) |
| 74A410674-1001 | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 74A410674-1001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 10153777 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 74A410674-1001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A10674-1001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 1967B-674 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A410674-1001 | 5/9 Secondary reference Heroux-Devtek Inc |
| 74A410674-1001 | 5/2 Secondary reference U.S. Government activity |
| 74A410674-1001 | C/1 Advisory reference — outside the item-of-supply concept Circor Aerospace, Inc. Div Circor |
| 74A410674-1001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A410674-1001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A410674-1001 | C/1 Advisory reference — outside the item-of-supply concept Israel Aerospace Industries Ltd.shl-Aero Assemblies Division |
| 74A410674-1001 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
NSN 1620-01-267-0442 is a Piston Assembly,main Landing Gea, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-267-0442 has 7 manufacturer part numbers on file: 74A410674-1001 (Hdi Landing Gear Usa Inc), 74A410674-1001 (The Boeing Company Div Defense), 74A410674-1001 (Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co), 74A410674-1001 (A. J. Associates Manufacturing & Engineering Co. Inc.), 74A410674-1001 (Nassau Tool Works, Inc) and 2 more.
Key specifications for 74A410674-1001: General Characteristics Item Description: BOLT SHAPED; CIRCULAR HEAD ONE END; 0.750-16 UNJF-3A THREADS OTHER END; 0.500 IN. ID BORE APPROX 7.000 IN. DEEP; 0.748 IN. OD A. 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.
NSN 1620-01-267-0442 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.