The Stem Assembly,steering Valve Rel, cataloged under National Stock Number 1620-00-092-4243, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Airborne Technologies, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 1620-00-092-4243 |
| Primary Part Number | 341640 |
| Item Name | Stem Assembly,steering Valve Rel |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Airborne Technologies, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,COMP 2024,COND T4;SYNTHETIC RUBBER H-212-85,FSCM 77308;C/O 1 EA STEM,P/N 341640-3;1 EA SEAT,P/N 341640-4;O/A DIM 0.499 IN. DIA;2.594 IN. 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 |
NSN 1620-00-092-4243 is a Stem Assembly,steering Valve Rel, manufactured by Airborne Technologies, Inc., classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-00-092-4243 has 3 manufacturer part numbers on file: 341640 (Airborne Technologies, Inc.), 341640 (Skyspares Parts Inc), 341640 (Sonfarrel Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 2590-01-302-6288, 4220-01-327-2022. Verify interchangeability with system specifications before substitution.
Key specifications for 341640: General Characteristics Item Description: ALUMINUM ALLOY,COMP 2024,COND T4;SYNTHETIC RUBBER H-212-85,FSCM 77308;C/O 1 EA STEM,P/N 341640-3;1 EA SEAT,P/N 341640-4;O/A DIM 0.499 IN. DIA;2.594 IN. 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 1620-00-092-4243 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.