The Attenuator,fixed, cataloged under National Stock Number 5985-00-258-0153, 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 L3harris Technologies, Inc.. Government technical data includes 20 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-258-0153 |
| Primary Part Number | 2136875G012 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| FSC Application Data | ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT |
| Frequency Range | 7.000 GIGAHERTZ MINIMUM AND 16.500 GIGAHERTZ MAXIMUM |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Voltage Standing Wave Ratio | 1.35 |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | CONNECTOR |
| Rf Signal Attenuation in Decibels | 7.0 |
| Attenuation Accuracy in Decibels | -0.40 TO 0.40 |
| Surface Treatment | PASSIVATE BODY |
| Connection Type Per Function | FEMALE OUTPUT AND MALE INPUT |
| Operating Temp Range | -55.0 TO 105.0 CELSIUS DEGC |
| Voltage Standing Wave Ratio Frequency Range | +7.0 TO 16.5 GIGAHERTZ |
| Application Design | TRANSMISSION LINE |
| Material | STEEL CORROSION RESISTING BODY |
| Unpackaged Unit Weight | 0.350 OUNCES OZ |
| Power Rating | 1.0 WATTS AVERAGE |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| Coaxial Connector Series Designation | SMA |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5L5177-002-07 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| 2136875G012 PRIMARY | L3harris Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2082-5109 | 5/9 Secondary reference U.S. Government activity |
| 263-7DB | C/1 Advisory reference — outside the item-of-supply concept Cinch Connectivity Solutions Inc |
| 2082-5109-07 | 5/9 Secondary reference U.S. Government activity |
| 9270-7 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4M7DB | 5/9 Secondary reference U.S. Government activity |
| 20-808500-5 | C/1 Advisory reference — outside the item-of-supply concept General Dynamics Advanced Information Systems Inc. Dba General Dynamics Advanced Information Systems |
| 4M-7 | 5/2 Secondary reference U.S. Government activity |
| 23560-7 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-00-258-0153 is a Attenuator,fixed, manufactured by L3harris Technologies, Inc., classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-258-0153 has 2 manufacturer part numbers on file: 5L5177-002-07 (Hensoldt Sensors Gmbh Div Seps), 2136875G012 (L3harris Technologies, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5360-00-559-0887, 5310-01-625-9264, 6150-01-659-6949. Verify interchangeability with system specifications before substitution.
Key specifications for 2136875G012: FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT; Frequency Range: 7.000 GIGAHERTZ MINIMUM AND 16.500 GIGAHERTZ MAXIMUM; Body Style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE; Overall Diameter: 0.375 INCHES NOMINAL IN. 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.
NSN 5985-00-258-0153 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.