PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30635Waveguide Assembly

Frontgrade Technologies Inc. · NSN 5985-00-776-2235 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-776-2235 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-776-2235. Primary manufacturer part number: 30635.
Features
  • Waveguide Assembly — FSC 5985
  • Nominal Thread Size: 0.112 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN
  • Thread Class: 2B ALL FLANGES ALL CONNECTION FACILITIES
  • Surface Treatment: SILVER SINGLE TUBING SEGMENT INSIDE SURFACES
  • Flange Inside Width: 0.350 INCHES NOMINAL ALL FLANGES IN
  • Waveguide Length: 1.940 INCHES NOMINAL IN
  • Precious Material and Location: TUBING INSIDE SURFACE SILVER
  • Flexibility: FLEXIBLE SINGLE TUBING SEGMENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-776-2235, 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 24 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-776-2235
Primary Part Number30635
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerFrontgrade Technologies Inc.
StatusACTIVE
Nominal Thread Size0.112 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN
Thread Class2B ALL FLANGES ALL CONNECTION FACILITIES
Surface TreatmentSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
Flange Inside Width0.350 INCHES NOMINAL ALL FLANGES IN
Waveguide Length1.940 INCHES NOMINAL IN
Precious Material and LocationTUBING INSIDE SURFACE SILVER
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Waveguide Inside Width0.280 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES
Flange Outside Diameter1.125 INCHES NOMINAL ALL FLANGES IN
Waveguide Outside Width0.360 INCHES NOMINAL IN
Flange Depth0.114 INCHES NOMINAL ALL FLANGES IN
Style DesignatorSTRAIGHT TYPE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES
Waveguide Outside Height0.220 INCHES NOMINAL IN
Flange Quantity2
Flange StyleCOVER TYPE ALL FLANGES
Flange Connecting Facility and Quantity8 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Voltage Standing Wave Ratio1.10
Waveguide Inside Height0.140 INCHES NOMINAL IN
Precious MaterialSILVER
Flange Inside Height0.215 INCHES NOMINAL ALL FLANGES IN
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
8115-00-179-057918X12X10SWDOM275 INTERCHANGEABLE
Box,shipping
Ponderosa Packaging Corp.
1630-00-858-0465 INTERCHANGEABLE
Parts Kit,wheel,cur
5340-01-038-051210351-SS-1032-6B INTERCHANGEABLE
Handle,bow
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
3030-01-120-5865 INTERCHANGEABLE
Belt,drive
5120-01-513-6757K690 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
Cross-Reference Index
Part NumberManufacturer
681887 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
30635 Litton Systems Inc Airtron Div (USA)
30635 PRIMARY Frontgrade Technologies Inc. (USA)
Related Parts
8115-00-179-0579INTERCHANGEABLE
BOX,SHIPPING
18X12X10SWDOM275
1630-00-858-0465INTERCHANGEABLE
PARTS KIT,WHEEL,CUR
5340-01-038-0512INTERCHANGEABLE
HANDLE,BOW
10351-SS-1032-6B
3030-01-120-5865INTERCHANGEABLE
BELT,DRIVE
5120-01-513-6757INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
K690

Frequently Asked Questions

What is NSN 5985-00-776-2235?

NSN 5985-00-776-2235 is a Waveguide Assembly, manufactured by Frontgrade Technologies Inc., classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-776-2235?

NSN 5985-00-776-2235 has 3 cross-referenced part numbers: 681887 (Lockheed Martin Corporation Div Rms - Mitchel Field), 30635 (Litton Systems Inc Airtron Div), 30635 (Frontgrade Technologies Inc.).

What NSN replaces 5985-00-776-2235?

There are 5 known substitutes for 5985-00-776-2235: 8115-00-179-0579, 1630-00-858-0465, 5340-01-038-0512 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30635?

Key specifications for 30635: Nominal Thread Size: 0.112 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN; Thread Class: 2B ALL FLANGES ALL CONNECTION FACILITIES; Surface Treatment: SILVER SINGLE TUBING SEGMENT INSIDE SURFACES; Flange Inside Width: 0.350 INCHES NOMINAL ALL FLANGES IN. 25 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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