The Support Assembly,combiner, cataloged under National Stock Number 1270-01-235-5209, is classified within Federal Supply Class 1270 (Aircraft Gunnery Fire Control Components) of the Fire Control Equipment group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1270-01-235-5209 |
| Primary Part Number | 122120-9B |
| Item Name | Support Assembly,combiner |
| FSC / FSG | 1270 / 12 — Aircraft Gunnery Fire Control Components |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters |
| Status | ACTIVE |
| General Characteristics Item Description | COMBINER-MACHINED SUPPORT 1;COMBINER TRIM OPTICS ELEMENT 1;COMBINER RETAINER 2;GOES ON HEADUP DISPLAY UNIT P/N 122000-9 |
| 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 |
|---|---|
| 122120-9B PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters (USA) |
| Reference | Meaning |
|---|---|
| 122120-9B | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Rc Displays Systems |
| 122120-9B | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 122120-9 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters |
| 122120-9 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Rc Displays Systems |
| 122120-9A | 5/9 Secondary reference Rockwell Collins, Inc. Dba Rc Displays Systems |
NSN 1270-01-235-5209 is a Support Assembly,combiner, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters, classified under FSC 1270, Aircraft Gunnery Fire Control Components. Status: active.
NSN 1270-01-235-5209 has 1 manufacturer part number on file: 122120-9B (Rockwell Collins, Inc. Dba Collins Aerospace Military Avionics & Helicopters Div Collins Aerospace - Military Avionics & Helicopters).
Key specifications for 122120-9B: General Characteristics Item Description: COMBINER-MACHINED SUPPORT 1;COMBINER TRIM OPTICS ELEMENT 1;COMBINER RETAINER 2;GOES ON HEADUP DISPLAY UNIT P/N 122000-9; End Item Identification: F-15 ACFT. 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 1270-01-235-5209 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.