PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

312109Attenuator,fixed

Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq · NSN 5985-01-163-6221 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-163-6221 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-163-6221. Primary manufacturer part number: 312109.
Features
  • Attenuator,fixed — FSC 5985
  • 4 verified cross-references
  • Primary manufacturer: Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-01-163-6221, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAttenuator,fixed
FSC / FSG5985 — No Item Name Available (FSG 59)
ManufacturersNarda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (CAGE 99899); L3harris Technologies, Inc. (CAGE 28527); Spectrum Control Inc Div Weinschel (CAGE 93459)
Technical Specifications
ParameterValue
NSN5985-01-163-6221
Primary Part Number312109
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNarda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-01-162-5708312109 INTERCHANGEABLE
Setscrew
Caterpillar Inc Div Caterpillar Defense
6650-01-164-7651 INTERCHANGEABLE
Magnifier
6260-01-625-47399-27030 INTERCHANGEABLE
Light,chemiluminescent
Cyalume Technologies Inc Dba Cyalume Technologies Inc
Cross-Reference Index
Part NumberManufacturer
312109 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
2136875G005 L3harris Technologies, Inc. (USA)
A089-914-30 Spectrum Control Inc Div Weinschel (USA)
9270-30 Spectrum Control Inc Div Weinschel (USA)
Related Parts
5305-01-162-5708INTERCHANGEABLE
SETSCREW
312109
6650-01-164-7651INTERCHANGEABLE
MAGNIFIER
6260-01-625-4739INTERCHANGEABLE
LIGHT,CHEMILUMINESCENT
9-27030

Frequently Asked Questions

What is NSN 5985-01-163-6221?

NSN 5985-01-163-6221 is a Attenuator,fixed, manufactured by Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-163-6221?

NSN 5985-01-163-6221 has 4 cross-referenced part numbers: 312109 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 2136875G005 (L3harris Technologies, Inc.), A089-914-30 (Spectrum Control Inc Div Weinschel), 9270-30 (Spectrum Control Inc Div Weinschel).

What NSN replaces 5985-01-163-6221?

There are 3 known substitutes for 5985-01-163-6221: 5305-01-162-5708, 6650-01-164-7651, 6260-01-625-4739. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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