The Cell Assembly,optical Instrument, cataloged under National Stock Number 1270-01-517-0201, 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 Rc Displays Systems. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1270-01-517-0201 |
| Primary Part Number | 122028-19 |
| Item Name | Cell Assembly,optical Instrument |
| FSC / FSG | 1270 / 12 — Aircraft Gunnery Fire Control Components |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| Optical Element Controlling Agency | AIR FORCE |
| Optical Element Quantity | 1 |
| Eccentric Construction | NOT PROVIDED |
| Optical Element Type | OPTICAL GLASS WINDOW |
| Supplementary Features | CONSISTS OF 1 WINDOW MACHINED BEZEL P/N 122026-1, 1 WINDOW ELEMENT P/N 122027-3, ADHESIVE P/N PC98080-1 |
| Optical Element Identifying Number | 122027-3 PART NO. |
| Material | GLASS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 122028-19 PRIMARY | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
| Reference | Meaning |
|---|---|
| 122028 | D/9 Drawing number reference only Rockwell Collins, Inc. Dba Rc Displays Systems |
NSN 1270-01-517-0201 is a Cell Assembly,optical Instrument, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 1270, Aircraft Gunnery Fire Control Components. Status: active.
NSN 1270-01-517-0201 has 1 manufacturer part number on file: 122028-19 (Rockwell Collins, Inc. Dba Rc Displays Systems).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-614-6738, 5365-01-681-9530. Verify interchangeability with system specifications before substitution.
Key specifications for 122028-19: Optical Element Controlling Agency: AIR FORCE; Optical Element Quantity: 1; Eccentric Construction: NOT PROVIDED; Optical Element Type: OPTICAL GLASS WINDOW. 7 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 1270-01-517-0201 has DEMIL Code D. 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.