The Collar Assy, cataloged under National Stock Number 1620-01-210-2451, 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. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Collar Assy |
| FSC / FSG | 1620 — Aircraft Landing Gear Components (FSG 16) |
| Manufacturers | The Boeing Company Div Defense (CAGE 76301); Goodrich Corporation (CAGE 6K4C8) |
| Parameter | Value |
|---|---|
| NSN | 1620-01-210-2451 |
| Primary Part Number | 74A450640-1005 |
| Item Name | Collar Assy |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 74A450640-1005 PRIMARY | The Boeing Company Div Defense (USA) |
| 1958-D-50 | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1958-D-50 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 1620-01-210-2451 is a Collar Assy, manufactured by The Boeing Company Div Defense, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-210-2451 has 2 manufacturer part numbers on file: 74A450640-1005 (The Boeing Company Div Defense), 1958-D-50 (Goodrich Corporation).
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 1620-01-210-2451 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.