PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

V637Horn,waveguide

Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq · NSN 5985-01-031-1981 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-031-1981 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-031-1981. Primary manufacturer part number: V637.
Features
  • Horn,waveguide — FSC 5985
  • Accommodated Conductor Type: WAVEGUIDE
  • FSC Application Data: RADAR EQUIPMENT
  • Material: COPPER ALLOY
  • Frequency Range Rating: +26.5 TO 40.0 GIGAHERTZ
  • Mouth Width: 0.721 INCHES MINIMUM AND 0.841 INCHES MAXIMUM IN
  • Mouth Length: 0.971 INCHES MINIMUM AND 1.091 INCHES MAXIMUM IN
  • Connection Method: WAVEGUIDE FLANGE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Horn,waveguide, cataloged under National Stock Number 5985-01-031-1981, 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 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq. Government technical data includes 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-031-1981
Primary Part NumberV637
Item NameHorn,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNarda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
StatusACTIVE
Accommodated Conductor TypeWAVEGUIDE
FSC Application DataRADAR EQUIPMENT
MaterialCOPPER ALLOY
Frequency Range Rating+26.5 TO 40.0 GIGAHERTZ
Mouth Width0.721 INCHES MINIMUM AND 0.841 INCHES MAXIMUM IN
Mouth Length0.971 INCHES MINIMUM AND 1.091 INCHES MAXIMUM IN
Connection MethodWAVEGUIDE FLANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2805-00-517-1680V-727 INTERCHANGEABLE
Valve,poppet,engine
Dana Corp Spicer Transmission Div
Cross-Reference Index
Part NumberManufacturer
V637 PRIMARY Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
Related Parts
2805-00-517-1680INTERCHANGEABLE
VALVE,POPPET,ENGINE
V-727

Frequently Asked Questions

What is NSN 5985-01-031-1981?

NSN 5985-01-031-1981 is a Horn,waveguide, manufactured by Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-031-1981?

NSN 5985-01-031-1981 has 1 cross-referenced part number: V637 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq).

What NSN replaces 5985-01-031-1981?

There is 1 known substitute for 5985-01-031-1981: 2805-00-517-1680. Verify interchangeability with system specifications before substitution.

What are the specifications of V637?

Key specifications for V637: Accommodated Conductor Type: WAVEGUIDE; FSC Application Data: RADAR EQUIPMENT; Material: COPPER ALLOY; Frequency Range Rating: +26.5 TO 40.0 GIGAHERTZ. 10 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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