The Attenuator,variable, cataloged under National Stock Number 5985-01-443-4508, 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. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-443-4508 |
| Primary Part Number | 185A453-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Body Style | WAVEGUIDE TYPE |
| Adjustment Device Type and Quantity | 1 ELECTRONIC, VOLTAGE CONTROLLED |
| Overall Attenuation Range in Decibels | +0.25 TO 1.75 |
| Criticality Code Justification | FEAT |
| Attenuation Per Step in Decibels | 0.25 |
| Attenuation Variation Method | STEPPED |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 7 PIN |
| Step Position Quantity | 7 |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | M |
| Part Number | Manufacturer |
|---|---|
| 185A453-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| CAT38009 | 5/1 Secondary reference Daico Industries, Inc. Dba Daico Industries Inc |
| NH185A453-1 | 5/1 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
NSN 5985-01-443-4508 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 5985-01-443-4508 has 1 manufacturer part number on file: 185A453-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 185A453-1: Overall Height: 0.200 INCHES NOMINAL IN; Body Style: WAVEGUIDE TYPE; Adjustment Device Type and Quantity: 1 ELECTRONIC, VOLTAGE CONTROLLED; Overall Attenuation Range in Decibels: +0.25 TO 1.75. 10 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 5985-01-443-4508 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.