NSN 5840-01-633-9441 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-633-9441. Manufacturer of record part number: AN/APX-121.
The Transponder,radio, cataloged under National Stock Number 5840-01-633-9441, is classified within Federal Supply Class 5840 (Radar Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc. 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. Current acquisition status: Active.
Other items in FSC 5840 — Radar Equipment, Except Airborne
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5840-00-001-1605
5840-00-001-1605 · Item name not on file
5840-00-001-1606
5840-00-001-1606 · Item name not on file
5840-00-001-1607
5840-00-001-1607 · Item name not on file
5840-00-001-1608
5840-00-001-1608 · Item name not on file
5840-00-001-1609
5840-00-001-1609 · Item name not on file
5840-00-001-1610
5840-00-001-1610 · Item name not on file
5840-00-001-1611
5840-00-001-1611 · Item name not on file
5840-00-001-1612
5840-00-001-1612 · Item name not on file
Frequently Asked Questions
What is NSN 5840-01-633-9441?
NSN 5840-01-633-9441 is a Transponder,radio, manufactured by Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc, classified under FSC 5840, Radar Equipment, Except Airborne. Status: active.
What part numbers are listed for NSN 5840-01-633-9441?
NSN 5840-01-633-9441 has 1 manufacturer part number on file: AN/APX-121 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc).
What are the specifications of AN/APX-121?
Key specifications for AN/APX-121: Electrical Power Source Relationship: OPERATING; Special Features: ADVANCED MICROWAVE AND DIGITAL FEATURES; Part Name Assigned by Controlling Agency: IFF TRANSPONDER. 1 specification is documented in the U.S. Government catalog.
Is NSN 5840-01-633-9441 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 5840-01-633-9441?
NSN 5840-01-633-9441 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.