The Attenuator,fixed, cataloged under National Stock Number 5985-01-081-3874, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-01-081-3874 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM12.400 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.980 INCHES MAXIMUM0.980 INCHES MAXIMUM IN |
| Precious Material | GOLD OR SILVER |
| Voltage Standing Wave Ratio | 1.15 AND 1.15 AND 1.301.30 |
| Input Impedance Rating in Ohms | 50.050.0 |
| Mounting Method | CONNECTORCONNECTOR |
| Rf Signal Attenuation in Decibels | 9.09.0 |
| Attenuation Accuracy in Decibels | -0.40 TO 0.40-0.40 TO 0.40 |
| Precious Material and Location | TERMINAL SURFACE GOLD OR TERMINAL SURFACE SILVER |
| Connection Type Per Function | FEMALE INPUT AND FEMALE INPUT AND MALE OUTPUTMALE OUTPUT |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS-55.0 TO 85.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 4.0 GIGAHERTZ AND +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ+4.0 TO 12.4 GIGAHERTZ |
| Test Data Document | 81349-MIL-A-3933/14 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Application Design | TRANSMISSION LINETRANSMISSION LINE |
| Material | COPPER ALLOY BODY |
| Power Rating | 2.0 WATTS AVERAGE AND 2.0 WATTS AVERAGE AND 0.2 KILOWATTS PEAK0.2 KILOWATTS PEAK |
| Terminal Type and Quantity | 2 CONNECTOR2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.050.0 |
| Coaxial Connector Series Designation | SMASMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-A-3933/14 | 4/1 Identification reference U.S. Government activity |
| M3933/14-12 | 2/2 Government specification standardization U.S. Government activity |
NSN 5985-01-081-3874 is a Attenuator,fixed, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5985-01-238-2358. Verify interchangeability with system specifications before substitution.
Key specifications for 5985-01-081-3874: Frequency Range: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM12.400 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.980 INCHES MAXIMUM0.980 INCHES MAXIMUM IN; Precious Material: GOLD OR SILVER. 20 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.