PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12639Isolator,radio Frequency Reflect

Versitron Inc · NSN 5985-01-249-6310 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-249-6310 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-249-6310. Primary manufacturer part number: 12639.
Features
  • Isolator,radio Frequency Reflect — FSC 5985
  • 1 verified cross-reference
  • Primary manufacturer: Versitron Inc
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 5985-01-249-6310, 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 Versitron Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-249-6310
Primary Part Number12639
Item NameIsolator,radio Frequency Reflect
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerVersitron Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4720-00-874-5978MB12639-0 INTERCHANGEABLE
Hose Assembly,metallic
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
5930-01-107-922522941 INTERCHANGEABLE
Switch,push
Dana Commercial Vehicle Products, Llc
4720-01-210-957212639 INTERCHANGEABLE
Hose,preformed
Westerbeke Corporation
3120-01-268-770512639 INTERCHANGEABLE
Parts Kit,bearing Replacement,me
Middleby Marshall Inc Toastmaster Cooking and Warming Equipment Div
9905-01-348-631912639 INTERCHANGEABLE
Plate,instruction
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
12639 PRIMARY Versitron Inc (USA)
Related Parts
4720-00-874-5978INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
MB12639-0
5930-01-107-9225INTERCHANGEABLE
SWITCH,PUSH
22941
4720-01-210-9572INTERCHANGEABLE
HOSE,PREFORMED
12639
3120-01-268-7705INTERCHANGEABLE
PARTS KIT,BEARING REPLACEMENT,ME
12639
9905-01-348-6319INTERCHANGEABLE
PLATE,INSTRUCTION
12639

Frequently Asked Questions

What is NSN 5985-01-249-6310?

NSN 5985-01-249-6310 is a Isolator,radio Frequency Reflect, manufactured by Versitron Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-249-6310?

NSN 5985-01-249-6310 has 1 cross-referenced part number: 12639 (Versitron Inc).

What NSN replaces 5985-01-249-6310?

There are 5 known substitutes for 5985-01-249-6310: 4720-00-874-5978, 5930-01-107-9225, 4720-01-210-9572 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12639?

Key specifications for 12639: Overall Length: 5.000 INCHES NOMINAL IN; Overall Width: 5.000 INCHES NOMINAL IN; End Item Identification: AN/FRC-178 GROUND ANTENNA; Overall Height: 1.875 INCHES NOMINAL IN. 4 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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