PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31801Diplexer

K&l Microwave Llc · NSN 5985-01-183-5331 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-183-5331 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-183-5331. Primary manufacturer part number: 31801.
Features
  • Diplexer — FSC 5985
  • Supplementary Features: MATERIALS AND FINISHES MEET MIL-E-5400 FOR CORROSION RESISTANCE,DISSIMILAR METALS,FUNGUS INERT MATERIALS,AND FLAMMABLE MATERIALS; EXTERIOR SOLVENT RESISTANT PER MIL-STD-202 METHOD 215
  • Overall Thickness: 0.500 INCHES NOMINAL IN
  • Transmission Line Type: COAXIAL CABLE
  • 5 verified cross-references
  • Primary manufacturer: K&l Microwave Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diplexer, cataloged under National Stock Number 5985-01-183-5331, 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 K&l Microwave Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-183-5331
Primary Part Number31801
Item NameDiplexer
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerK&l Microwave Llc
StatusACTIVE
Supplementary FeaturesMATERIALS AND FINISHES MEET MIL-E-5400 FOR CORROSION RESISTANCE,DISSIMILAR METALS,FUNGUS INERT MATERIALS,AND FLAMMABLE MATERIALS; EXTERIOR SOLVENT RESISTANT PER MIL-STD-202 METHOD 215
Overall Thickness0.500 INCHES NOMINAL IN
Transmission Line TypeCOAXIAL CABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6125-00-497-2070 INTERCHANGEABLE
Inverter
2590-00-851-7533TG1 INTERCHANGEABLE
Cap,filler Opening
Stant Mfg Co Inc
6520-01-265-0103 INTERCHANGEABLE
Stone,artificial,dental
Cross-Reference Index
Part NumberManufacturer
31801 PRIMARY K&l Microwave Llc (USA)
G254052-1 (3B150) Raytheon Company (USA)
G254052-1 Raytheon Company Dba Raytheon Co (USA)
G254052-1 (3B150) PRIMARY Raytheon Company Dba Raytheon Co (USA)
G254052-1 Raytheon Company Div Corp (USA)
Related Parts
6125-00-497-2070INTERCHANGEABLE
INVERTER
2590-00-851-7533INTERCHANGEABLE
CAP,FILLER OPENING
TG1
6520-01-265-0103INTERCHANGEABLE
STONE,ARTIFICIAL,DENTAL

Frequently Asked Questions

What is NSN 5985-01-183-5331?

NSN 5985-01-183-5331 is a Diplexer, manufactured by K&l Microwave Llc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-183-5331?

NSN 5985-01-183-5331 has 5 cross-referenced part numbers: 31801 (K&l Microwave Llc), G254052-1 (3B150) (Raytheon Company), G254052-1 (Raytheon Company Dba Raytheon Co), G254052-1 (3B150) (Raytheon Company Dba Raytheon Co), G254052-1 (Raytheon Company Div Corp).

What NSN replaces 5985-01-183-5331?

There are 3 known substitutes for 5985-01-183-5331: 6125-00-497-2070, 2590-00-851-7533, 6520-01-265-0103. Verify interchangeability with system specifications before substitution.

What are the specifications of 31801?

Key specifications for 31801: Supplementary Features: MATERIALS AND FINISHES MEET MIL-E-5400 FOR CORROSION RESISTANCE,DISSIMILAR METALS,FUNGUS INERT MATERIALS,AND FLAMMABLE MATERIALS; EXTERIOR SOLVENT RESISTANT PER MIL-STD-202 METHOD 215; Overall Thickness: 0.500 INCHES NOMINAL IN; Special Features: OPER ALT 50000 FT; OPER TEMP M 54.0 TO P 95.0 DEG C FT; Overall Width: 1.000 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

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