The Jack,aircraft Landing Gear, cataloged under National Stock Number 1730-01-476-1946, is classified within Federal Supply Class 1730 (Aircraft Ground Servicing Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The manufacturer of record is Seyer Industries, Inc. Dba Seyer Industries Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1730-01-476-1946 |
| Primary Part Number | SI4394001-101 |
| Item Name | Jack,aircraft Landing Gear |
| FSC / FSG | 1730 / 17 — Aircraft Ground Servicing Equipment |
| Manufacturer | Seyer Industries, Inc. Dba Seyer Industries Inc |
| Status | ACTIVE |
| Supplementary Features | THIS ITEM WILL SUPERSEDE NIIN 012602203; SERD 0924 |
| Reference Data and Literature | NAVAIR MANUAL 19-70-521 |
| Functional Description | THIS 20 TON AIRCRAFT AXLE JACK WILL PROVIDE A MEANS FOR MAINTENANCE PERSONNEL TO ELEVATE THE MAIN LANDING GEAR (MLG) AND THE NOSE LANDING GEAR (NLG) |
| 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 |
|---|---|
| SI4394001-101 PRIMARY | Seyer Industries, Inc. Dba Seyer Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| S14394001-101 | 5/9 Secondary reference Seyer Industries, Inc. Dba Seyer Industries Inc |
NSN 1730-01-476-1946 is a Jack,aircraft Landing Gear, manufactured by Seyer Industries, Inc. Dba Seyer Industries Inc, classified under FSC 1730, Aircraft Ground Servicing Equipment. Status: active.
NSN 1730-01-476-1946 has 1 manufacturer part number on file: SI4394001-101 (Seyer Industries, Inc. Dba Seyer Industries Inc).
Key specifications for SI4394001-101: Supplementary Features: THIS ITEM WILL SUPERSEDE NIIN 012602203; SERD 0924; Reference Data and Literature: NAVAIR MANUAL 19-70-521; Special Features: HEIGHT 14.5 INCHES; WIDTH 15.4 INCHES; LENGTH 26.0 INCHES; 20 TON AXLE JACK IN; Functional Description: THIS 20 TON AIRCRAFT AXLE JACK WILL PROVIDE A MEANS FOR MAINTENANCE PERSONNEL TO ELEVATE THE MAIN LANDING GEAR (MLG) AND THE NOSE LANDING GEAR (NLG). 3 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.
NSN 1730-01-476-1946 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.