The Nut,packing,landing Gear, cataloged under National Stock Number 1620-00-458-3025, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Heroux-Devtek Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-00-458-3025 |
| Primary Part Number | 4G53666-101B |
| Item Name | Nut,packing,landing Gear |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Heroux-Devtek Inc |
| Status | ACTIVE |
| FSC Application Data | LANDING GEAR,RETRACTABLE |
| General Characteristics Item Description | STEEL ALLOY,HIGH STRENGTH,LOCKHEED GEORGIA SPEC STM-05-504,12.250 IN. DIA O/A,1.710 IN. THK O/A,11.160-12 UNS-3A THD 1.258 IN.LG,HEAT TREAT 220000 TO 240000 PSI,ALL MACHINE SURFACES 125MICROINCH,SHOT PEEN A |
| 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 |
|---|---|
| 4G53666-101B | Heroux-Devtek Inc (CAN) |
| 4G53666-101B | Advanced Air of West Palm Beach, Inc. (USA) |
| 4G53666-101B | Alpine Industries, Llc (USA) |
| 4G53666-101B | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 4G53666-101B | Aerometals, Inc. (USA) |
| 4G53666-101B | Cummins Aerospace, Llc Dba Cummins Aerospace Llc (USA) |
| 4G53666-101B | International Precision, Inc (USA) |
| Reference | Meaning |
|---|---|
| 4G53666-101B | 3/2 Design control — primary reference U.S. Government activity |
NSN 1620-00-458-3025 is a Nut,packing,landing Gear, manufactured by Heroux-Devtek Inc, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-00-458-3025 has 7 manufacturer part numbers on file: 4G53666-101B (Heroux-Devtek Inc), 4G53666-101B (Advanced Air of West Palm Beach, Inc.), 4G53666-101B (Alpine Industries, Llc), 4G53666-101B (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 4G53666-101B (Aerometals, Inc.) and 2 more.
Key specifications for 4G53666-101B: FSC Application Data: LANDING GEAR,RETRACTABLE; General Characteristics Item Description: STEEL ALLOY,HIGH STRENGTH,LOCKHEED GEORGIA SPEC STM-05-504,12.250 IN. DIA O/A,1.710 IN. THK O/A,11.160-12 UNS-3A THD 1.258 IN.LG,HEAT TREAT 220000 TO 240000 PSI,ALL MACHINE SURFACES 125MICROINCH,SHOT PEEN A. 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.