The Truss Assembly, cataloged under National Stock Number 1620-01-173-2033, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1620-01-173-2033 |
| Primary Part Number | 123LM40055-601 |
| Item Name | Truss Assembly |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| 123LM40055-601 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123LM40055 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 123LM40055 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 123LM40055-601 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123LM40055-601 | 5/1 Secondary reference Northrop Grumman Technical Services, Inc. |
NSN 1620-01-173-2033 is a Truss Assembly, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-01-173-2033 has 1 manufacturer part number on file: 123LM40055-601 (Northrop Grumman Systems Corporation).
Key specifications for 123LM40055-601: End Item Identification: AIRCRAFT MODEL C2/E2. 0 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 1620-01-173-2033 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.