The Attenuator,fixed, cataloged under National Stock Number 5985-00-902-7954, 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 Microtech Inc Dba Microtech Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5985-00-902-7954 |
| Primary Part Number | 300030 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — Antennas, Waveguides, and Related Equipment |
| Manufacturer | Microtech Inc Dba Microtech Inc |
| Status | ACTIVE |
| Frequency Range | 30.000 MEGAHERTZ MINIMUM AND 70.000 MEGAHERTZ MAXIMUM |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | TERMINAL |
| Rf Signal Attenuation in Decibels | 70.0 |
| Attenuation Accuracy in Decibels | -3.00 TO 3.00 |
| Schematic Diagram Designator | UNBALANCED "PI" |
| Application Design | TRANSMISSION LINE |
| Power Rating | 500.0 MILLIWATTS AVERAGE |
| Terminal Type and Quantity | 2 CONNECTOR |
| Output Impedance Rating in Ohms | 50.0 |
| 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 |
|---|---|
| 300030 PRIMARY | Microtech Inc Dba Microtech Inc (USA) |
| Reference | Meaning |
|---|---|
| CN1079ARM87 | 5/2 Secondary reference U.S. Government activity |
NSN 5985-00-902-7954 is a Attenuator,fixed, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
NSN 5985-00-902-7954 has 1 manufacturer part number on file: 300030 (Microtech Inc Dba Microtech Inc).
5 possible matches (shared part number, not a government interchangeability claim): 4330-01-200-5599, 7010-01-278-0763, 4810-01-503-5991. Verify interchangeability with system specifications before substitution.
Key specifications for 300030: Overall Height: 0.468 INCHES NOMINAL IN; Frequency Range: 30.000 MEGAHERTZ MINIMUM AND 70.000 MEGAHERTZ MAXIMUM; Input Impedance Rating in Ohms: 50.0; Mounting Method: TERMINAL. 10 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.