The Attenuator,fixed, cataloged under National Stock Number 5985-01-629-4785, 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 Spectrum Control, Inc.. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-629-4785 |
| Primary Part Number | EQ1251-25 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Spectrum Control, Inc. |
| Status | ACTIVE |
| Frequency Range | 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 9.10 MILLIMETERS NOMINAL MM |
| Precious Material | GOLD |
| Mounting Method | SCREW |
| Rf Signal Attenuation in Decibels | 25.0 |
| Schematic Diagram Designator | DISTRIBUTED LOSSY LINE |
| Surface Treatment | PASSIVATE BODY |
| Precious Material and Location | CONDUCTOR,PLATED GOLD |
| Operating Temp Range | -54.0 TO 125.0 CELSIUS DEGC |
| Application Design | TRANSMISSION LINE |
| Material | STEEL CORROSION RESISTING BODY |
| Terminal Type and Quantity | 1 CONNECTOR AND 1 THREADED STUD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| EQ1251-25 PRIMARY | Spectrum Control, Inc. (USA) |
NSN 5985-01-629-4785 is a Attenuator,fixed, manufactured by Spectrum Control, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-629-4785 has 1 manufacturer part number on file: EQ1251-25 (Spectrum Control, Inc.).
Key specifications for EQ1251-25: Frequency Range: 2.0 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 9.10 MILLIMETERS NOMINAL MM; Precious Material: GOLD. 13 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.