The Nut Assembly,packing, cataloged under National Stock Number 1620-01-185-6400, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-185-6400 |
| Primary Part Number | 1881-228 |
| Item Name | Nut Assembly,packing |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| FSC Application Data | MAIN LANDING GEAR,POSITIONER |
| General Characteristics Item Description | MATL ALUMINUM ALLOY 7075 T73 PER QQ-A-225/9;NUT P/N 1881-223-10;ASSY P/N 1881-228;INSERT P/N MS21208F1-15 |
| 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 |
|---|---|
| 1881-228 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 1881-228 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 1620-01-185-6400 is a Nut Assembly,packing, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-185-6400 has 1 manufacturer part number on file: 1881-228 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 1881-228: FSC Application Data: MAIN LANDING GEAR,POSITIONER; General Characteristics Item Description: MATL ALUMINUM ALLOY 7075 T73 PER QQ-A-225/9;NUT P/N 1881-223-10;ASSY P/N 1881-228;INSERT P/N MS21208F1-15; End Item Identification: AIRCRAFT B1B. 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.