The Piston,switch Actuating, cataloged under National Stock Number 1620-01-107-6831, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-107-6831 |
| Primary Part Number | 74A450827-2003 |
| Item Name | Piston,switch Actuating |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 74A450827-2003 | Nassau Tool Works, Inc (USA) |
| 74A450827-2003 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74A450827-2003 | 5/9 Secondary reference Heroux-Devtek Inc |
| 74A450827-2003 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A450827-2003 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A450827-2003 | C/1 Advisory reference — outside the item-of-supply concept Israel Aerospace Industries Ltd.shl-Aero Assemblies Division |
| 74A450827-2001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450827-2003 | 5/9 Secondary reference Safran Landing Systems Canada Inc. |
| 74A450827-2003 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450827-2003 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 10153679 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 1958-187 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A450827-2003 | 5/2 Secondary reference U.S. Government activity |
| 74A450827-2001 | 5/9 Secondary reference The Boeing Company Div Defense |
| 74A450827 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 1620-01-107-6831 is a Piston,switch Actuating, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-107-6831 has 2 manufacturer part numbers on file: 74A450827-2003 (Nassau Tool Works, Inc), 74A450827-2003 (The Boeing Company Div Defense).
Key specifications for 74A450827-2003: Overall Length: 3.310 INCHES NOMINAL IN; Special Features: FIRST END 0.420 IN. DIA, SECOND END 0.358 IN. DIA; BOTH ENDS CHAMFERED 0.030 IN. BY 45 DEG; 1 HOLE 0.060 IN. THRU IN; End Item Identification: AIRCRAFT,SKY HAWK A-4; Material: ALUMINUM ALLOY. 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 1620-01-107-6831 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.