The Attenuator,variable, cataloged under National Stock Number 5985-00-773-3437, 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 Telephonics Corp/prd Instruments. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5985-00-773-3437 |
| Primary Part Number | 175B |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 TERMINAL WITH MOUNTING HOLES |
| Body Style | WAVEGUIDE TYPE |
| Mounting Facility Pattern | EIGHT POSITION CIRCULAR |
| Adjustment Device Type and Quantity | 1 KNOB |
| Overall Attenuation Range in Decibels | +0.0 TO 100.0 |
| Unthreaded Mounting Hole Diameter | 0.265 INCHES NOMINAL IN |
| Attenuation Per Step in Decibels | 1.0 |
| Attenuation Variation Method | STEPPED |
| Bolt Circle Diameter | 4.750 INCHES NOMINAL IN |
| Application Design | WAVEGUIDE |
| Terminal Type and Quantity | 2 FLANGE |
| Step Position Quantity | 100 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5985-00-773-3437 is a Attenuator,variable, manufactured by Telephonics Corp/prd Instruments, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-773-3437 has 2 manufacturer part numbers on file: 36039 (Telephonics Corp/prd Instruments), 175B (Telephonics Corp/prd Instruments).
Key specifications for 175B: Mounting Facility Type and Quantity: 2 TERMINAL WITH MOUNTING HOLES; Overall Height: 5.312 INCHES NOMINAL IN; Body Style: WAVEGUIDE TYPE; Mounting Facility Pattern: EIGHT POSITION CIRCULAR. 12 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.
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.