NSN 1620-01-116-8559 — this item is cataloged by the U.S. Government under National Stock Number 1620-01-116-8559. Manufacturer of record part number: 4202056-1.
General Characteristics Item Description: STEEL PER AMS 5643; 0.1885 TO0.1 890 IN. DIA; 0.150 IN.0/A LG. IN
2 manufacturer part numbers on file
Manufacturer of record: Triumph Actuation Systems - Connecticut, Llc
Identification
NSN: 1620-01-116-8559
NIIN: 011168559
FSC: 1620 — Aircraft Landing Gear Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 4202056-1
Manufacturer: Triumph Actuation Systems - Connecticut, Llc
General Description
The Retainer,seal, cataloged under National Stock Number 1620-01-116-8559, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Triumph Actuation Systems - Connecticut, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
1620-01-116-8559
Primary Part Number
4202056-1
Item Name
Retainer,seal
FSC / FSG
1620 / 16 — Aircraft Landing Gear Components
Manufacturer
Triumph Actuation Systems - Connecticut, Llc
Status
ACTIVE
General Characteristics Item Description
STEEL PER AMS 5643; 0.1885 TO0.1 890 IN. DIA; 0.150 IN.0/A LG. IN
Triumph Actuation Systems - Connecticut, Llc (USA)
Reference documents
Reference
Meaning
10153712
6/9Informative reference only
Nimikkeistokeskus Ncb Finland
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.
1620-00-001-2466
HOUSING,GEARBOX,KNE
1620-00-001-2467
HOUSING,GEARBOX,KNE
1620-00-001-2468
1620-00-001-2468 · Item name not on file
1620-00-001-3929
LEVER ASSEMBLY
1620-00-001-4483
CYLINDER LANDING GE
1620-00-001-6577
1620-00-001-6577 · Item name not on file
1620-00-001-6942
END PLATE,POWER ST
1620-00-003-0391
DRAG BRACE,LANDING GEAR
Frequently Asked Questions
What is NSN 1620-01-116-8559?
NSN 1620-01-116-8559 is a Retainer,seal, manufactured by Triumph Actuation Systems - Connecticut, Llc, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
What part numbers are listed for NSN 1620-01-116-8559?
NSN 1620-01-116-8559 has 2 manufacturer part numbers on file: 4202056-1 (Ace Precision, Inc.), 4202056-1 (Triumph Actuation Systems - Connecticut, Llc).
What are the specifications of 4202056-1?
Key specifications for 4202056-1: General Characteristics Item Description: STEEL PER AMS 5643; 0.1885 TO0.1 890 IN. DIA; 0.150 IN.0/A LG. IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 1620-01-116-8559 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 1620-01-116-8559?
NSN 1620-01-116-8559 has DEMIL Code Q. 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.