The Attenuator,variable, cataloged under National Stock Number 5985-01-461-4792, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-461-4792 |
| Primary Part Number | 185A458-2 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 185A458-2 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| 253A691-1 | Crane Electronics, Inc. Dba Signal Technology Div Olektron (USA) |
| 253A691-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 253A691 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 5985-01-461-4792 is a Attenuator,variable, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-461-4792 has 3 manufacturer part numbers on file: 185A458-2 (Lockheed Martin Corporation Div Rotary and Mission Systems), 253A691-1 (Crane Electronics, Inc. Dba Signal Technology Div Olektron), 253A691-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 185A458-2: End Item Identification: PACER SPECIAL. 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 5985-01-461-4792 has DEMIL Code B. 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.