The Block,air, cataloged under National Stock Number 1270-01-084-9354, is classified within Federal Supply Class 1270 (Aircraft Gunnery Fire Control Components) of the Fire Control Equipment group. The manufacturer of record is Lockheed Martin Corp Electronics and Missiles Div. Government technical data includes 2 specifications, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1270-01-084-9354 |
| Primary Part Number | 143924 |
| Item Name | Block,air |
| FSC / FSG | 1270 / 12 — Aircraft Gunnery Fire Control Components |
| Manufacturer | Lockheed Martin Corp Electronics and Missiles Div |
| Status | ACTIVE |
| FSC Application Data | ACFT GUNNERY FIRE CONTROL COMPONENT |
| General Characteristics Item Description | ITEM CONSISTS OF LENGTH 4.49 IN.,WIDTH 0.25 IN.,MATL POLYPROPYLENE TYPE 1,L-P-394 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 143924 PRIMARY | Lockheed Martin Corp Electronics and Missiles Div (USA) |
NSN 1270-01-084-9354 is a Block,air, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 1270, Aircraft Gunnery Fire Control Components. Status: active.
NSN 1270-01-084-9354 has 1 manufacturer part number on file: 143924 (Lockheed Martin Corp Electronics and Missiles Div).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-237-6987. Verify interchangeability with system specifications before substitution.
Key specifications for 143924: FSC Application Data: ACFT GUNNERY FIRE CONTROL COMPONENT; General Characteristics Item Description: ITEM CONSISTS OF LENGTH 4.49 IN.,WIDTH 0.25 IN.,MATL POLYPROPYLENE TYPE 1,L-P-394 IN; End Item Identification: AN/AVQ-26,AMPLIFIER NSN 1270-01-072-2402. 2 specifications are 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.
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.