The Ring,orifice Suppor, cataloged under National Stock Number 1620-01-247-4166, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-247-4166 |
| Primary Part Number | 68A412738-2001 |
| Item Name | Ring,orifice Suppor |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| FSC Application Data | MAIN LANDING GEAR,PISTON |
| General Characteristics Item Description | CAST IRON AMS 7310;3.520 IN OD RESTRAINED 0.186 THK IN |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 68A412738-2001 | Hdi Landing Gear Usa Inc (USA) |
| 68A412738-2001 | Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA) |
| 68A412738-2001 | Eagle Tool & Machine Co., Inc. (USA) |
| 68A412738-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 68A412738-2001 | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 68A412738-2001 | 5/2 Secondary reference U.S. Government activity |
| 68A412738-2001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 1620-01-247-4166 is a Ring,orifice Suppor, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-247-4166 has 5 manufacturer part numbers on file: 68A412738-2001 (Hdi Landing Gear Usa Inc), 68A412738-2001 (Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)), 68A412738-2001 (Eagle Tool & Machine Co., Inc.), 68A412738-2001 (The Boeing Company Div Defense), 68A412738-2001 (Goodrich Corporation).
Key specifications for 68A412738-2001: FSC Application Data: MAIN LANDING GEAR,PISTON; General Characteristics Item Description: CAST IRON AMS 7310;3.520 IN OD RESTRAINED 0.186 THK IN; Criticality Code Justification: FEAT; Special Features: FORM,FIT,FUNTION. 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 1620-01-247-4166 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.