PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

637-1Waveguide Assembly

Waveline Inc · NSN 5985-01-329-7762 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-329-7762 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-329-7762. Primary manufacturer part number: 637-1.
Features
  • Waveguide Assembly — FSC 5985
  • Voltage Standing Wave Ratio: 1.05
  • Waveguide Inside Width: 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN
  • Flange Depth: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN
  • Cross-Sectional Shape Style: INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
  • Flexibility: RIGID ALL TUBING SEGMENT
  • Waveguide Inside Height: 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
  • Flange Quantity: 2
Applications
  • Applications requiring Aluminum Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-329-7762, 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 28 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
NSN5985-01-329-7762
Primary Part Number637-1
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerWaveline Inc
StatusACTIVE
Voltage Standing Wave Ratio1.05
Waveguide Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN
Flange Depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
FlexibilityRIGID ALL TUBING SEGMENT
Waveguide Inside Height0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
Flange Quantity2
Nominal Thread Size0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN
Flange Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES IN
Thread DirectionRIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES
Flange Connecting Facility and Quantity4 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES
FSC Application DataRADAR EQUIPMENT
MaterialALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE
Thread Class2B ALL FLANGES ALL CONNECTION FACILITIES
Bend Angle in Deg90.0 SINGLE BEND H-PLANE
Waveguide Offset Distance1.125 INCHES NOMINAL IN
Waveguide Longer Offset Distance1.750 INCHES NOMINAL IN
Tubing Wall Construction StyleSEAMLESS ALL TUBING SEGMENT
Flange Outside Height1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN
Surface TreatmentCHROMATE ALL TUBING SEGMENT AND FLANGE ALL SURFACES
Flange Inside Height0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM ALL FLANGES IN
Flange Inside Diameter1.406 INCHES MINIMUM AND 1.437 INCHES MAXIMUM ALL FLANGES IN
Flange Outside Width1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN
Waveguide Outside Height0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
Style DesignatorCORNER TYPE
Flange StyleCHOKE TYPE ALL FLANGES
Waveguide Outside Width0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-050-5527 INTERCHANGEABLE
Pin,straight,headless
5340-00-163-26136371 INTERCHANGEABLE
Bumper
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
8345-00-233-2958 INTERCHANGEABLE
Flag,national
6150-00-249-69156371 INTERCHANGEABLE
Lead,storage Battery
893 Mfg, Llc
5310-00-262-2305 INTERCHANGEABLE
Washer,flat
5910-00-479-6665 INTERCHANGEABLE
Capacitor,variable,air Dielectri
5120-00-812-42336371 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Wta Tool Llc
2040-00-937-5904 INTERCHANGEABLE
Connection,hull
5330-01-035-18056371 INTERCHANGEABLE
Gasket
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
4730-01-056-88031106-1 INTERCHANGEABLE
Tee,pipe
Grinnell Corp
Cross-Reference Index
Part NumberManufacturer
637-1 Waveline Inc (USA)
ES8132-09 Drs Sustainment Systems, Inc. (USA)
AW2059 Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA)
Related Parts
5315-00-050-5527INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5340-00-163-2613INTERCHANGEABLE
BUMPER
6371
8345-00-233-2958INTERCHANGEABLE
FLAG,NATIONAL
6150-00-249-6915INTERCHANGEABLE
LEAD,STORAGE BATTERY
6371
5310-00-262-2305INTERCHANGEABLE
WASHER,FLAT
5910-00-479-6665INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5120-00-812-4233INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
6371
2040-00-937-5904INTERCHANGEABLE
CONNECTION,HULL
5330-01-035-1805INTERCHANGEABLE
GASKET
6371
4730-01-056-8803INTERCHANGEABLE
TEE,PIPE
1106-1
5950-01-240-6454INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
648Z1474-1
5950-01-279-8163INTERCHANGEABLE
REACTOR

Frequently Asked Questions

What is NSN 5985-01-329-7762?

NSN 5985-01-329-7762 is a Waveguide Assembly, manufactured by Waveline Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-329-7762?

NSN 5985-01-329-7762 has 3 cross-referenced part numbers: 637-1 (Waveline Inc), ES8132-09 (Drs Sustainment Systems, Inc.), AW2059 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).

What NSN replaces 5985-01-329-7762?

There are 12 known substitutes for 5985-01-329-7762: 5315-00-050-5527, 5340-00-163-2613, 8345-00-233-2958 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 637-1?

Key specifications for 637-1: Voltage Standing Wave Ratio: 1.05; Waveguide Inside Width: 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN; Flange Depth: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN; Cross-Sectional Shape Style: INTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR. 29 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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