PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

770-40Coupler,directional

Waveline Inc · NSN 5985-00-984-1861 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-984-1861 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-984-1861. Primary manufacturer part number: 770-40.
Features
  • Coupler,directional — FSC 5985
  • Terminal Fitting Controlling Agency: MS
  • Identifying Number: TERMINAL FITTING TYPE UG419/U
  • Design Type: BIDIRECTIONAL
  • Power Loss in Decibels: 40.0
  • Unit Type: WAVEGUIDE
  • Radio Frequency Rating: 12.4 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM
  • Usage Design: MAIN LINE TERMINAL FITTING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,directional, cataloged under National Stock Number 5985-00-984-1861, 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 Waveline Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-984-1861
Primary Part Number770-40
Item NameCoupler,directional
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerWaveline Inc
StatusACTIVE
Terminal Fitting Controlling AgencyMS
Identifying NumberTERMINAL FITTING TYPE UG419/U
Design TypeBIDIRECTIONAL
Power Loss in Decibels40.0
Unit TypeWAVEGUIDE
Radio Frequency Rating12.4 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM
Usage DesignMAIN LINE TERMINAL FITTING
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1285-00-052-55791440805 INTERCHANGEABLE
Gear Assembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-00-165-511277040 INTERCHANGEABLE
Retainer,seal
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5999-00-193-278977040 INTERCHANGEABLE
Contact,electrical
Telemechanics Inc
5962-01-100-8948 INTERCHANGEABLE
Microcircuit,linear
5962-01-128-3891 INTERCHANGEABLE
Microcircuit,linear
5962-01-162-5569 INTERCHANGEABLE
Microcircuit,linear
5962-01-273-0785 INTERCHANGEABLE
Microcircuit,linear
5962-01-291-6196 INTERCHANGEABLE
Microcircuit,linear
5977-01-377-769777040RT INTERCHANGEABLE
Electrode
Exceltec Intl Corp
Cross-Reference Index
Part NumberManufacturer
772200-5 Raytheon Company Dba Raytheon (USA)
770-40 PRIMARY Waveline Inc (USA)
Related Parts
1285-00-052-5579INTERCHANGEABLE
GEAR ASSEMBLY
1440805
5330-00-165-5112INTERCHANGEABLE
RETAINER,SEAL
77040
5999-00-193-2789INTERCHANGEABLE
CONTACT,ELECTRICAL
77040
5962-01-100-8948INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5962-01-128-3891INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5962-01-162-5569INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5962-01-273-0785INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5962-01-291-6196INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5977-01-377-7697INTERCHANGEABLE
ELECTRODE
77040RT

Frequently Asked Questions

What is NSN 5985-00-984-1861?

NSN 5985-00-984-1861 is a Coupler,directional, manufactured by Waveline Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-984-1861?

NSN 5985-00-984-1861 has 2 cross-referenced part numbers: 772200-5 (Raytheon Company Dba Raytheon), 770-40 (Waveline Inc).

What NSN replaces 5985-00-984-1861?

There are 9 known substitutes for 5985-00-984-1861: 1285-00-052-5579, 5330-00-165-5112, 5999-00-193-2789 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 770-40?

Key specifications for 770-40: Terminal Fitting Controlling Agency: MS; Identifying Number: TERMINAL FITTING TYPE UG419/U; Design Type: BIDIRECTIONAL; Power Loss in Decibels: 40.0. 11 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