NSN 4920-01-339-6180 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-339-6180. Manufacturer of record part number: ASI-203.
Also searched as4920-01-339-6180 ·
4920013396180 ·
NIIN 013396180 ·
01-339-6180 ·
FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 8S585 · ASI-203 · 80N-1A
General Characteristics Item Description: PROVIDES 150 AND 300 FT PER MINUTE ALTITUDE RATE SIGNAL AND AUTOMATIC DESCENT RATES FOR AUTOLAND TESTS FT
Functional Description: USED TO ISOLATE FAULTS IN THE AL-101OR AL-101A RADIO ALTIMETER SYSTEM AND TO PERFORM ROUTINE FLIGHT-LINE MAINTENANCE TESTS ON THE SYSTEM WHILE INSTALLED ON THE ACFT A
2 manufacturer part numbers on file
Manufacturer of record: Avionics Specialist Inc Dba Avionics Specialist Inc
Identification
NSN: 4920-01-339-6180
NIIN: 013396180
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
The Test Set,altimeter, cataloged under National Stock Number 4920-01-339-6180, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Avionics Specialist Inc Dba Avionics Specialist Inc. 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. Current acquisition status: Active.
PROVIDES 150 AND 300 FT PER MINUTE ALTITUDE RATE SIGNAL AND AUTOMATIC DESCENT RATES FOR AUTOLAND TESTS FT
Functional Description
USED TO ISOLATE FAULTS IN THE AL-101OR AL-101A RADIO ALTIMETER SYSTEM AND TO PERFORM ROUTINE FLIGHT-LINE MAINTENANCE TESTS ON THE SYSTEM WHILE INSTALLED ON THE ACFT A
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Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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Frequently Asked Questions
What is NSN 4920-01-339-6180?
NSN 4920-01-339-6180 is a Test Set,altimeter, manufactured by Avionics Specialist Inc Dba Avionics Specialist Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
What part numbers are listed for NSN 4920-01-339-6180?
NSN 4920-01-339-6180 has 2 manufacturer part numbers on file: ASI-203 (Avionics Specialist Inc Dba Avionics Specialist Inc), 80N-1A (Viavi Solutions Llc Div Lenexa).
What are the specifications of ASI-203?
Key specifications for ASI-203: General Characteristics Item Description: PROVIDES 150 AND 300 FT PER MINUTE ALTITUDE RATE SIGNAL AND AUTOMATIC DESCENT RATES FOR AUTOLAND TESTS FT; Functional Description: USED TO ISOLATE FAULTS IN THE AL-101OR AL-101A RADIO ALTIMETER SYSTEM AND TO PERFORM ROUTINE FLIGHT-LINE MAINTENANCE TESTS ON THE SYSTEM WHILE INSTALLED ON THE ACFT A; End Item Identification: GROUND PROXIMITY WARNING SYSTEM,KC-135 ACFT. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4920-01-339-6180 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 4920-01-339-6180?
NSN 4920-01-339-6180 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.