The Attenuator,fixed, cataloged under National Stock Number 5985-01-156-8846, 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 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 18 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 | 5985-01-156-8846 |
| Primary Part Number | 9999-1003-004 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | ACTIVE |
| Frequency Range | 0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.505 INCHES NOMINAL IN |
| Precious Material | SILVER |
| Voltage Standing Wave Ratio | 1.20 |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | CONNECTOR |
| Rf Signal Attenuation in Decibels | 33.0 |
| Surface Treatment | SILVER BODY |
| Precious Material and Location | BODY SURFACE SILVER |
| Connection Type Per Function | FEMALE OUTPUT AND MALE INPUT |
| Operating Temp Range | -30.0 TO 70.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 2.5 GIGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Power Rating | 2.0 WATTS AVERAGE |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | BNC |
| 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 |
|---|---|
| A-2767 | Rlc Electronics, Inc (USA) |
| 9999-1003-004 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
NSN 5985-01-156-8846 is a Attenuator,fixed, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-01-156-8846 has 2 manufacturer part numbers on file: A-2767 (Rlc Electronics, Inc), 9999-1003-004 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
Key specifications for 9999-1003-004: Frequency Range: 0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.505 INCHES NOMINAL IN; Precious Material: SILVER. 18 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.