The Computer,bomb-Navigational, cataloged under National Stock Number 1280-00-055-9774, is classified within Federal Supply Class 1280 (Aircraft Bombing Fire Control Components) of the Fire Control Equipment group. The manufacturer of record is Ge Aviation Systems Llc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1280-00-055-9774 |
| Primary Part Number | 139400-01-01 |
| Item Name | Computer,bomb-Navigational |
| FSC / FSG | 1280 / 12 — Aircraft Bombing Fire Control Components |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Alternating Current Voltage Rating in Volts | 115.0 |
| Unpackaged Unit Length | 10.39 INCHES NOMINAL IN |
| Unpackaged Unit Width | 5.00 INCHES NOMINAL IN |
| Direct Current Voltage Rating in Volts | 28.0 |
| Unpackaged Unit Height | 5.37 INCHES NOMINAL IN |
| Functional Description | PROVIDES PITCH AND ROLL AND ROLL FLIGHT DIRECTOR SIGNALS FOR LABS AND LADD BOMBING MANEUVERS |
| 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 |
|---|---|
| 139400-01-01 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| CP734AJB7 | 5/1 Secondary reference U.S. Government activity |
NSN 1280-00-055-9774 is a Computer,bomb-Navigational, manufactured by Ge Aviation Systems Llc, classified under FSC 1280, Aircraft Bombing Fire Control Components. Status: active.
NSN 1280-00-055-9774 has 1 manufacturer part number on file: 139400-01-01 (Ge Aviation Systems Llc).
1 possible match (shared part number, not a government interchangeability claim): 1280-00-933-8792. Verify interchangeability with system specifications before substitution.
Key specifications for 139400-01-01: Alternating Current Voltage Rating in Volts: 115.0; Unpackaged Unit Length: 10.39 INCHES NOMINAL IN; Unpackaged Unit Width: 5.00 INCHES NOMINAL IN; Direct Current Voltage Rating in Volts: 28.0. 6 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 1280-00-055-9774 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.