PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3165Coupler,rotary,radio Frequency

Frontgrade Technologies Inc. · NSN 5985-01-081-9965 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-081-9965 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-081-9965. Primary manufacturer part number: 3165.
Features
  • Coupler,rotary,radio Frequency — FSC 5985
  • Radio Frequency Rating: 2.1 GIGAHERTZ MINIMUM AND 2.7 GIGAHERTZ MAXIMUM
  • Output Impedance Rating in Ohms: 50.0
  • Material: ALUMINUM
  • Overall Diameter: 7.500 INCHES NOMINAL IN
  • Input Impedance Rating in Ohms: 50.0
  • Unit Type: WAVEGUIDE
  • Mounting Configuration: 4 HOLES 0.406 IN DIA ON 6.5 IN DIA BC,2 FLANGES UG-554/U IN
Applications
  • Applications requiring Aluminum construction
General Description

The Coupler,rotary,radio Frequency, cataloged under National Stock Number 5985-01-081-9965, 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 Frontgrade Technologies Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-081-9965
Primary Part Number3165
Item NameCoupler,rotary,radio Frequency
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerFrontgrade Technologies Inc.
StatusACTIVE
Radio Frequency Rating2.1 GIGAHERTZ MINIMUM AND 2.7 GIGAHERTZ MAXIMUM
Output Impedance Rating in Ohms50.0
MaterialALUMINUM
Overall Diameter7.500 INCHES NOMINAL IN
Input Impedance Rating in Ohms50.0
Unit TypeWAVEGUIDE
Mounting Configuration4 HOLES 0.406 IN DIA ON 6.5 IN DIA BC,2 FLANGES UG-554/U IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-061-85863165 INTERCHANGEABLE
Washer Assortment
Roller Bearing Co of America, Inc Div Pic Design
5365-00-079-6546 INTERCHANGEABLE
Spacer,sleeve
3110-00-156-7674S95316 INTERCHANGEABLE
Bearing,roller,journal
Rbc Bearings Incorporated Div West Trenton Division
5330-00-202-3868S10 INTERCHANGEABLE
Gasket
Sloan Valve Company
5930-00-254-7088 INTERCHANGEABLE
Switch,pressure
5950-00-647-50931181776 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6750-01-066-9915 INTERCHANGEABLE
Plate,photographic
4920-01-102-52353165 INTERCHANGEABLE
Arbor Assembly
Kampi Components Co Inc
5310-01-160-99543165 INTERCHANGEABLE
Washer,flat
DP Manufacturing Inc.
5930-01-224-6162 INTERCHANGEABLE
Switch,rotary
Cross-Reference Index
Part NumberManufacturer
3165 PRIMARY Frontgrade Technologies Inc. (USA)
3165 Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division (USA)
654VM2505-3 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
Related Parts
5310-00-061-8586INTERCHANGEABLE
WASHER ASSORTMENT
3165
5365-00-079-6546INTERCHANGEABLE
SPACER,SLEEVE
3110-00-156-7674INTERCHANGEABLE
BEARING,ROLLER,JOURNAL
S95316
5330-00-202-3868INTERCHANGEABLE
GASKET
S10
5930-00-254-7088INTERCHANGEABLE
SWITCH,PRESSURE
5950-00-647-5093INTERCHANGEABLE
TRANSFORMER,POWER
1181776
6750-01-066-9915INTERCHANGEABLE
PLATE,PHOTOGRAPHIC
4920-01-102-5235INTERCHANGEABLE
ARBOR ASSEMBLY
3165
5310-01-160-9954INTERCHANGEABLE
WASHER,FLAT
3165
5930-01-224-6162INTERCHANGEABLE
SWITCH,ROTARY
2910-01-367-2057INTERCHANGEABLE
NOZZLE,FUEL INJECTION
31-65
5985-01-374-2622INTERCHANGEABLE
COUPLER,ANTENNA
3165

Frequently Asked Questions

What is NSN 5985-01-081-9965?

NSN 5985-01-081-9965 is a Coupler,rotary,radio Frequency, manufactured by Frontgrade Technologies Inc., classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-081-9965?

NSN 5985-01-081-9965 has 3 cross-referenced part numbers: 3165 (Frontgrade Technologies Inc.), 3165 (Kevlin Corporation Dba Cobham Sensor Systems Div Kevlin Division), 654VM2505-3 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company).

What NSN replaces 5985-01-081-9965?

There are 12 known substitutes for 5985-01-081-9965: 5310-00-061-8586, 5365-00-079-6546, 3110-00-156-7674 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3165?

Key specifications for 3165: Radio Frequency Rating: 2.1 GIGAHERTZ MINIMUM AND 2.7 GIGAHERTZ MAXIMUM; Output Impedance Rating in Ohms: 50.0; Material: ALUMINUM; Overall Diameter: 7.500 INCHES NOMINAL IN. 9 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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