The Ring,piston,landing Gear, cataloged under National Stock Number 1620-01-151-0689, 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 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-151-0689 |
| Primary Part Number | 74A410631-2001 |
| Item Name | Ring,piston,landing Gear |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 74A410631-2001 | Safran Landing Systems Canada Inc. (CAN) |
| 74A410631-2001 | Blair Industries Inc (USA) |
| 74A410631-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 74A410631-2001 | Nassau Tool Works, Inc (USA) |
| Reference | Meaning |
|---|---|
| 74A410631-2001 | 5/9 Secondary reference Israel Aerospace Industries Ltd. Shl - Aero Assemblies Division |
| 74A410631-2001 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 74A410631-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
| 74A410631-2001 | 5/9 Secondary reference Circor Aerospace, Inc. Dba Circor Aerospace Machining Center |
| 74A410631-2001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 74A410631-2001 | 5/2 Secondary reference U.S. Government activity |
| 74A410631-2001 | C/1 Advisory reference — outside the item-of-supply concept Circor Aerospace, Inc. Div Circor |
| 74A410631-2001 | 5/9 Secondary reference Heroux-Devtek Inc |
NSN 1620-01-151-0689 is a Ring,piston,landing Gear, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-151-0689 has 4 manufacturer part numbers on file: 74A410631-2001 (Safran Landing Systems Canada Inc.), 74A410631-2001 (Blair Industries Inc), 74A410631-2001 (The Boeing Company Div Defense), 74A410631-2001 (Nassau Tool Works, Inc).
Key specifications for 74A410631-2001: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: F/A-18 HORNET MAIN LANDING GEAR. 1 specification is 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 1620-01-151-0689 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.