PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P3939Probe,waveguide

Projects Unlimited Inc · NSN 5985-00-643-2759 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-643-2759 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-643-2759. Primary manufacturer part number: P3939.
Features
  • Probe,waveguide — FSC 5985
  • Body Material: ALUMINUM
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Frequency Rating: 10.0 MEGAHERTZ MINIMUM AND 50.0 MEGAHERTZ MAXIMUM
  • Detector Type: TRAVELING
  • 6 verified cross-references
  • Primary manufacturer: Projects Unlimited Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Probe,waveguide, cataloged under National Stock Number 5985-00-643-2759, 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 Projects Unlimited Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-643-2759
Primary Part NumberP3939
Item NameProbe,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerProjects Unlimited Inc
StatusACTIVE
Body MaterialALUMINUM
Overall Diameter0.625 INCHES NOMINAL IN
Frequency Rating10.0 MEGAHERTZ MINIMUM AND 50.0 MEGAHERTZ MAXIMUM
Detector TypeTRAVELING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3040-00-070-22853939 INTERCHANGEABLE
Ring,piston
Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division
5360-00-253-69083939 INTERCHANGEABLE
Spring,helical,compression
Komatsu America Corporation
5930-00-272-1401 INTERCHANGEABLE
Switch,toggle
5999-00-299-0901201146-2 INTERCHANGEABLE
Contact,electrical
Te Connectivity Corporation
5305-01-352-2009 INTERCHANGEABLE
Screw,machine
6520-01-365-21057000053331 INTERCHANGEABLE
Matrix,crown,dental
Solventum Us Llc
5310-01-394-44683939 INTERCHANGEABLE
Washer,lock
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5340-01-572-34013939 INTERCHANGEABLE
Bumper
Palm Industries Inc
Cross-Reference Index
Part NumberManufacturer
7403540G1 Lockheed Martin Corporation Div Rms (USA)
7403540REV2PT1 General Electric Company (USA)
MX-925/U Joint Electronics Type Designation System (USA)
7403540G1 General Electric Company (USA)
3939 Projects Unlimited Inc (USA)
P3939 PRIMARY Projects Unlimited Inc (USA)
Related Parts
3040-00-070-2285INTERCHANGEABLE
RING,PISTON
3939
5360-00-253-6908INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3939
5930-00-272-1401INTERCHANGEABLE
SWITCH,TOGGLE
5999-00-299-0901INTERCHANGEABLE
CONTACT,ELECTRICAL
201146-2
5305-01-352-2009INTERCHANGEABLE
SCREW,MACHINE
6520-01-365-2105INTERCHANGEABLE
MATRIX,CROWN,DENTAL
7000053331
5310-01-394-4468INTERCHANGEABLE
WASHER,LOCK
3939
5340-01-572-3401INTERCHANGEABLE
BUMPER
3939

Frequently Asked Questions

What is NSN 5985-00-643-2759?

NSN 5985-00-643-2759 is a Probe,waveguide, manufactured by Projects Unlimited Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-643-2759?

NSN 5985-00-643-2759 has 6 cross-referenced part numbers: 7403540G1 (Lockheed Martin Corporation Div Rms), 7403540REV2PT1 (General Electric Company), MX-925/U (Joint Electronics Type Designation System), 7403540G1 (General Electric Company), 3939 (Projects Unlimited Inc) and 1 more.

What NSN replaces 5985-00-643-2759?

There are 8 known substitutes for 5985-00-643-2759: 3040-00-070-2285, 5360-00-253-6908, 5930-00-272-1401 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P3939?

Key specifications for P3939: Body Material: ALUMINUM; Overall Diameter: 0.625 INCHES NOMINAL IN; Frequency Rating: 10.0 MEGAHERTZ MINIMUM AND 50.0 MEGAHERTZ MAXIMUM; Detector Type: TRAVELING. 5 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