The Hook Assy, cataloged under National Stock Number 1620-01-033-3297, is classified within Federal Supply Class 1620 (Aircraft Landing Gear Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Hook Assy |
| FSC / FSG | 1620 — Aircraft Landing Gear Components (FSG 16) |
| Manufacturers | Northwest Machining & Mfg., Inc. Dba Northwest Machining & Manufacturing Inc (CAGE 9J448); Airtronics, Llc (CAGE 58078); Aerometals, Inc. (CAGE 32664); Northrop Grumman Systems Corporation (CAGE 79RG9); The Boeing Company Div Defense (CAGE 76301) |
| Parameter | Value |
|---|---|
| NSN | 1620-01-033-3297 |
| Primary Part Number | 160D637073-4 |
| Item Name | Hook Assy |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 160D637073-4 | Northwest Machining & Mfg., Inc. Dba Northwest Machining & Manufacturing Inc (USA) |
| 160D637073-4 | Airtronics, Llc (USA) |
| 160D637073-4 | Aerometals, Inc. (USA) |
| 160D637073-4 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 162D637073-1002 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 160D637073-4 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 160D637073-4 | 5/2 Secondary reference U.S. Government activity |
| 162D637073-1002 | 5/2 Secondary reference U.S. Government activity |
NSN 1620-01-033-3297 is a Hook Assy, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-033-3297 has 5 manufacturer part numbers on file: 160D637073-4 (Northwest Machining & Mfg., Inc. Dba Northwest Machining & Manufacturing Inc), 160D637073-4 (Airtronics, Llc), 160D637073-4 (Aerometals, Inc.), 160D637073-4 (Northrop Grumman Systems Corporation), 162D637073-1002 (The Boeing Company Div Defense).
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 1620-01-033-3297 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.