The Pin-Drag Brace,knee, cataloged under National Stock Number 1620-00-004-9876, 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 Div Northrop Grumman Aeronautics Systems. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Pin-Drag Brace,knee |
| FSC / FSG | 1620 — Aircraft Landing Gear Components (FSG 16) |
| Manufacturers | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (CAGE 70974) |
| Parameter | Value |
|---|---|
| NSN | 1620-00-004-9876 |
| Primary Part Number | 2578117 |
| Item Name | Pin-Drag Brace,knee |
| FSC / FSG | 1620 / 16 — Aircraft Landing Gear Components |
| Manufacturer | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems |
| 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 |
|---|---|
| 2578117 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 2578117 PRIMARY | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 2578117 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 2578117 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 1620-00-004-9876 is a Pin-Drag Brace,knee, manufactured by Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems, classified under FSC 1620, Aircraft Landing Gear Components. Status: active.
NSN 1620-00-004-9876 has 2 manufacturer part numbers on file: 2578117 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 2578117 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems).
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 1620-00-004-9876 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.