PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42098Isolator,radio Frequency Reflect

Eaton Corp Information Management Systems Div Microwave Components · NSN 5985-01-135-2127 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-135-2127 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-135-2127. Primary manufacturer part number: 42098.
Features
  • Isolator,radio Frequency Reflect — FSC 5985
  • Identification Designator: TYPE UG-135/U
  • Flange Connecting Hole Diameter: 0.167 INCHES MINIMUM IN
  • FSC Application Data: RADAR EQUIPMENT
  • Flange Connection Facility Quantity: 4
  • Flange Connecting Hole Spacing: SPACED ON 1.220 IN. BY 1.280 IN. MTG CTRS IN
  • Frequency Range Rating: +10.25 TO 10.55 GIGAHERTZ
  • Flange Quantity: 1
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Isolator,radio Frequency Reflect, cataloged under National Stock Number 5985-01-135-2127, 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 Eaton Corp Information Management Systems Div Microwave Components. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-135-2127
Primary Part Number42098
Item NameIsolator,radio Frequency Reflect
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerEaton Corp Information Management Systems Div Microwave Components
StatusACTIVE
Identification DesignatorTYPE UG-135/U
Flange Connecting Hole Diameter0.167 INCHES MINIMUM IN
FSC Application DataRADAR EQUIPMENT
Flange Connection Facility Quantity4
Flange Connecting Hole SpacingSPACED ON 1.220 IN. BY 1.280 IN. MTG CTRS IN
Frequency Range Rating+10.25 TO 10.55 GIGAHERTZ
Flange Quantity1
Flange TypeCOVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
7520-00-101-2863 INTERCHANGEABLE
Pen,recording
1560-00-136-01537-42098 INTERCHANGEABLE
Control Assembly,door
Triumph Controls, Llc Dba Triumph Controls, Llc
3110-00-144-8882109173 INTERCHANGEABLE
Bearing,ball,annular
Dresser, Llc
2940-00-238-5551AF0040000 INTERCHANGEABLE
Filter Element,intake Air Cleane
Cummins Filtration Inc Dba Fleetguard Div Cummins Inc
5950-00-647-8479 INTERCHANGEABLE
Transformer,power
5895-00-986-798542098 INTERCHANGEABLE
Cover,electronic Communication E
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Cross-Reference Index
Part NumberManufacturer
5347699 Naval Sea Systems Command (USA)
1204899 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
5347699 Astro Microwave Inc (USA)
42098 PRIMARY Eaton Corp Information Management Systems Div Microwave Components (USA)
Related Parts
7520-00-101-2863INTERCHANGEABLE
PEN,RECORDING
1560-00-136-0153INTERCHANGEABLE
CONTROL ASSEMBLY,DOOR
7-42098
3110-00-144-8882INTERCHANGEABLE
BEARING,BALL,ANNULAR
109173
2940-00-238-5551INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
AF0040000
5950-00-647-8479INTERCHANGEABLE
TRANSFORMER,POWER
5895-00-986-7985INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
42098

Frequently Asked Questions

What is NSN 5985-01-135-2127?

NSN 5985-01-135-2127 is a Isolator,radio Frequency Reflect, manufactured by Eaton Corp Information Management Systems Div Microwave Components, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-135-2127?

NSN 5985-01-135-2127 has 4 cross-referenced part numbers: 5347699 (Naval Sea Systems Command), 1204899 (Lockheed Martin Corporation Div Rms - Mitchel Field), 5347699 (Astro Microwave Inc), 42098 (Eaton Corp Information Management Systems Div Microwave Components).

What NSN replaces 5985-01-135-2127?

There are 6 known substitutes for 5985-01-135-2127: 7520-00-101-2863, 1560-00-136-0153, 3110-00-144-8882 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42098?

Key specifications for 42098: Overall Length: 1.875 INCHES MAXIMUM IN; Identification Designator: TYPE UG-135/U; Flange Connecting Hole Diameter: 0.167 INCHES MINIMUM IN; FSC Application Data: RADAR EQUIPMENT. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com