NSN 1620-01-185-6397 — this item is cataloged by the U.S. Government under National Stock Number 1620-01-185-6397. Manufacturer of record part number: 1881-239A.
Nearby stock numbers← 1620-01-185-3926 Cylinder and Piston Assembly, Lan
·
1620-01-185-6400 Nut Assembly, Packing →
Features
Floating Piston,positioner — FSC 1620
FSC Application Data: MAIN LANDING GEAR,POSITIONER
General Characteristics Item Description: MATL ALUMINUM ALLOY 7075 T73 PER QQ-A-225/9;PISTON P/N 1881-239A A
2 manufacturer part numbers on file
Manufacturer of record: Goodrich Corporation
Identification
NSN: 1620-01-185-6397
NIIN: 011856397
FSC: 1620 — Aircraft Landing Gear Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 1881-239A
Manufacturer: Goodrich Corporation
General Description
The Floating Piston,positioner, cataloged under National Stock Number 1620-01-185-6397, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Goodrich Corporation. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1620-01-185-6397
Primary Part Number
1881-239A
Item Name
Floating Piston,positioner
FSC / FSG
1620 / 16 — Aircraft Landing Gear Components
Manufacturer
Goodrich Corporation
Status
ACTIVE
FSC Application Data
MAIN LANDING GEAR,POSITIONER
General Characteristics Item Description
MATL ALUMINUM ALLOY 7075 T73 PER QQ-A-225/9;PISTON P/N 1881-239A A
Goodrich Corporation Div Advanced Structures Landing Systems
No interchangeability data on file.
Other items in FSC 1620 — Aircraft Landing Gear Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1620-00-491-0877
STRIKER,MICRO SWITCH
1620-00-491-0877
STRIKER,MICRO SWITCH
1620-00-699-0282
PISTON,CRANK AND LI
1620-00-718-6770
PISTON,FLOATING
1620-00-718-6770
PISTON,FLOATING
1620-00-736-1020
ROD,LATCH,SHORTENIN
1620-00-736-1020
ROD,LATCH,SHORTENIN
1620-00-756-9181
FITTING,STACK,TUBE
Frequently Asked Questions
What is NSN 1620-01-185-6397?
NSN 1620-01-185-6397 is a Floating Piston,positioner, manufactured by Goodrich Corporation, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
What part numbers are listed for NSN 1620-01-185-6397?
NSN 1620-01-185-6397 has 2 manufacturer part numbers on file: 1881-239A (Machine Specialties, Llc), 1881-239A (Goodrich Corporation).
What are the specifications of 1881-239A?
Key specifications for 1881-239A: FSC Application Data: MAIN LANDING GEAR,POSITIONER; General Characteristics Item Description: MATL ALUMINUM ALLOY 7075 T73 PER QQ-A-225/9;PISTON P/N 1881-239A A; Special Features: CAGE 13002 HOLDS DESIGN CONTROL; End Item Identification: AIRCRAFT B1B. 2 specifications are documented in the U.S. Government catalog.
Is NSN 1620-01-185-6397 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1620-01-185-6397?
NSN 1620-01-185-6397 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.