The Beam Steering Unit, cataloged under National Stock Number 5985-01-554-3177, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Chelton, Inc. Dba Cobham Antenna Systems Div Cobham Aerospace Connectivity. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5985-01-554-3177 |
| Primary Part Number | 804-10-0004 |
| Item Name | Beam Steering Unit |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Chelton, Inc. Dba Cobham Antenna Systems Div Cobham Aerospace Connectivity |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 804-10-0004 PRIMARY | Chelton, Inc. Dba Cobham Antenna Systems Div Cobham Aerospace Connectivity (USA) |
NSN 5985-01-554-3177 is a Beam Steering Unit, manufactured by Chelton, Inc. Dba Cobham Antenna Systems Div Cobham Aerospace Connectivity, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-554-3177 has 1 manufacturer part number on file: 804-10-0004 (Chelton, Inc. Dba Cobham Antenna Systems Div Cobham Aerospace Connectivity).
1 possible match (shared part number, not a government interchangeability claim): 5850-01-563-3109. Verify interchangeability with system specifications before substitution.
Key specifications for 804-10-0004: Overall Height: 1.950 INCHES NOMINAL IN; Overall Length: 7.560 INCHES NOMINAL IN; Overall Width: 6.380 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: BSU-7100 BEAM STEERING UNIT. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5985-01-554-3177 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.