The Housing Assembly, cataloged under National Stock Number 1620-01-116-8550, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-116-8550 |
| Primary Part Number | 4202001-1 |
| Item Name | Housing Assembly |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Triumph Actuation Systems - Connecticut, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM FORGING,7075,T-73; 7.668 IN. 0/A LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4202001-1 PRIMARY | Triumph Actuation Systems - Connecticut, Llc (USA) |
| Reference | Meaning |
|---|---|
| 10153706 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 1620-01-116-8550 is a Housing Assembly, manufactured by Triumph Actuation Systems - Connecticut, Llc, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-116-8550 has 1 manufacturer part number on file: 4202001-1 (Triumph Actuation Systems - Connecticut, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 3895-01-202-3738, 5910-01-460-9422. Verify interchangeability with system specifications before substitution.
Key specifications for 4202001-1: General Characteristics Item Description: ALUMINUM FORGING,7075,T-73; 7.668 IN. 0/A LG 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.
NSN 1620-01-116-8550 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.