The Attenuator,variable, cataloged under National Stock Number 5985-01-323-4931, 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 Raytheon Company. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-323-4931 |
| Primary Part Number | 627481-1 |
| Item Name | Attenuator,variable |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Frequency Range | 360.000 HERTZ MINIMUM AND 440.000 HERTZ MAXIMUM |
| Body Style | IRREGULAR |
| Mounting Facility Pattern | TWO POSITION DIAGONAL |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Criticality Code Justification | FEAT |
| Attenuation Variation Method | STEPPED |
| Mounting Thread Quantity | 40 PER INCH |
| Mounting Facility Nominal Screw Thread Diameter | 0.112 INCHES IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-STD-202 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Application Design | PRINTED CIRCUIT BOARD |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| Step Position Quantity | 5 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
NSN 5985-01-323-4931 is a Attenuator,variable, manufactured by Raytheon Company, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-323-4931 has 2 manufacturer part numbers on file: 627481-1 (Raytheon Company), MA-149 (Raytheon Company).
Key specifications for 627481-1: Mounting Facility Type and Quantity: 2 THREADED HOLE(S); Overall Height: 1.000 INCHES NOMINAL IN; Frequency Range: 360.000 HERTZ MINIMUM AND 440.000 HERTZ MAXIMUM; Body Style: IRREGULAR. 14 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.