PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125495Isolator,radio Frequency Reflect

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5985-00-135-9425 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-135-9425 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-135-9425. Primary manufacturer part number: 125495.
Features
  • Isolator,radio Frequency Reflect — FSC 5985
  • Controlling Agency: NOT APPLICABLE
  • Trade Designation: NOT APPLICABLE
  • Identification Designator: TYPE NO. UG-53/U
  • Flange Type: COVER
  • Frequency Range Rating: +3.500 TO 3.700 GIGAHERTZ
  • Document Type: MIL
  • Flange Connecting Hole Spacing: EQUALLY SPACED ON 4.750 IN. DIA BOLT CIRCLE IN
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 5985-00-135-9425, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-135-9425
Primary Part Number125495
Item NameIsolator,radio Frequency Reflect
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Controlling AgencyNOT APPLICABLE
Trade DesignationNOT APPLICABLE
Identification DesignatorTYPE NO. UG-53/U
Flange TypeCOVER
Frequency Range Rating+3.500 TO 3.700 GIGAHERTZ
Document TypeMIL
Flange Connecting Hole SpacingEQUALLY SPACED ON 4.750 IN. DIA BOLT CIRCLE IN
Flange Connecting Hole Diameter0.257 INCHES NOMINAL IN
Diameter5.313 INCHES NOMINAL IN
Document IdentificationMIL-F-3922
Flange Quantity2
Flange Connection Facility Quantity8
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-00-729-8371530313-2 INTERCHANGEABLE
Switch,rotary
Raytheon Company Dba Raytheon
6760-00-958-7397 INTERCHANGEABLE
Lens,enlarger
Cross-Reference Index
Part NumberManufacturer
125495 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5930-00-729-8371INTERCHANGEABLE
SWITCH,ROTARY
530313-2
6760-00-958-7397INTERCHANGEABLE
LENS,ENLARGER

Frequently Asked Questions

What is NSN 5985-00-135-9425?

NSN 5985-00-135-9425 is a Isolator,radio Frequency Reflect, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-135-9425?

NSN 5985-00-135-9425 has 1 cross-referenced part number: 125495 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5985-00-135-9425?

There are 2 known substitutes for 5985-00-135-9425: 5930-00-729-8371, 6760-00-958-7397. Verify interchangeability with system specifications before substitution.

What are the specifications of 125495?

Key specifications for 125495: Controlling Agency: NOT APPLICABLE; Trade Designation: NOT APPLICABLE; Special Features: ONE 7/16-20NF-2 THD FITTING LOCATED ON BODY FOR MATING; 1.4 IN. OD TUBING 37 DEG FLARE IN; Identification Designator: TYPE NO. UG-53/U. 16 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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