PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

635-1Waveguide Assembly

Drs Sustainment Systems Inc · NSN 5985-01-330-0242 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-330-0242 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-330-0242. Primary manufacturer part number: 635-1.
Features
  • Waveguide Assembly — FSC 5985
  • Style Designator: BEND TYPE
  • Flange Outside Height: 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN
  • Flange Inside Width: 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES IN
  • Flexibility: RIGID ALL TUBING SEGMENT
  • Waveguide Outside Width: 0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN
  • Thread Class: 2B ALL FLANGES ALL CONNECTION FACILITIES
  • Thread Direction: RIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES
Applications
  • Applications requiring Aluminum Alloy All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-330-0242, 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 Drs Sustainment Systems Inc. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-330-0242
Primary Part Number635-1
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerDrs Sustainment Systems Inc
StatusACTIVE
Style DesignatorBEND TYPE
Flange Outside Height1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN
Flange Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES IN
FlexibilityRIGID ALL TUBING SEGMENT
Waveguide Outside Width0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM IN
Thread Class2B ALL FLANGES ALL CONNECTION FACILITIES
Thread DirectionRIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES
Waveguide Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) ALL FLANGES ALL CONNECTION FACILITIES
Nominal Thread Size0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES IN
Flange Outside Width1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN
Waveguide Offset Distance0.926 INCHES MINIMUM IN
Flange Quantity2
Flange StyleCHOKE TYPE ALL FLANGES
Waveguide Inside Height0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
Waveguide Outside Height0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
Flange Connecting Facility and Quantity4 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Bend Angle in Deg90.0 SINGLE BEND E-PLANE
Flange Depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN
Tubing Wall Construction StyleSEAMLESS ALL TUBING SEGMENT
Flange Inside Diameter1.406 INCHES MINIMUM AND 1.437 INCHES MAXIMUM ALL FLANGES IN
Waveguide Longer Offset Distance2.000 INCHES NOMINAL IN
Flange Inside Height0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM ALL FLANGES IN
Surface TreatmentENAMEL ALL TUBING SEGMENT AND FLANGE OUTSIDE SURFACES
MaterialALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Voltage Standing Wave Ratio1.05
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4320-00-076-0631CR77047PC74 INTERCHANGEABLE
Needle,valve
Eaton Aerospace, Llc Dba Jackson South
6150-00-132-0489179 INTERCHANGEABLE
Lead,storage Battery
Elliott Machine Works Inc
4730-00-235-4065 INTERCHANGEABLE
Elbow,tube
2990-00-354-650663-51 INTERCHANGEABLE
Sleeve,governor Thrust
Dresser Industries Inc Leroi Div
5950-00-392-6563 INTERCHANGEABLE
Transformer,radio Frequency
5340-00-598-27291127-18 INTERCHANGEABLE
Buckle
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
9540-01-071-9590 INTERCHANGEABLE
Angle,structural
4820-01-368-75056351 INTERCHANGEABLE
Valve,safety Relief
Rosco Mfg Co
2925-01-415-02226351 INTERCHANGEABLE
Magneto,ignition
Unison Industries Llc
5310-01-498-17466351 INTERCHANGEABLE
Nut,eye
Wichard, Inc. Dba Wichard Inc
Cross-Reference Index
Part NumberManufacturer
635-1 Drs Sustainment Systems, Inc. (USA)
ES8132-05 Drs Sustainment Systems, Inc. (USA)
635-1 Waveline Inc (USA)
635-1 PRIMARY Drs Sustainment Systems Inc (USA)
AW2055 Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc (USA)
Related Parts
4320-00-076-0631INTERCHANGEABLE
NEEDLE,VALVE
CR77047PC74
6150-00-132-0489INTERCHANGEABLE
LEAD,STORAGE BATTERY
179
4730-00-235-4065INTERCHANGEABLE
ELBOW,TUBE
2990-00-354-6506INTERCHANGEABLE
SLEEVE,GOVERNOR THRUST
63-51
5950-00-392-6563INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5340-00-598-2729INTERCHANGEABLE
BUCKLE
1127-18
9540-01-071-9590INTERCHANGEABLE
ANGLE,STRUCTURAL
4820-01-368-7505INTERCHANGEABLE
VALVE,SAFETY RELIEF
6351
2925-01-415-0222INTERCHANGEABLE
MAGNETO,IGNITION
6351
5310-01-498-1746INTERCHANGEABLE
NUT,EYE
6351

Frequently Asked Questions

What is NSN 5985-01-330-0242?

NSN 5985-01-330-0242 is a Waveguide Assembly, manufactured by Drs Sustainment Systems Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-330-0242?

NSN 5985-01-330-0242 has 5 cross-referenced part numbers: 635-1 (Drs Sustainment Systems, Inc.), ES8132-05 (Drs Sustainment Systems, Inc.), 635-1 (Waveline Inc), 635-1 (Drs Sustainment Systems Inc), AW2055 (Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc).

What NSN replaces 5985-01-330-0242?

There are 10 known substitutes for 5985-01-330-0242: 4320-00-076-0631, 6150-00-132-0489, 4730-00-235-4065 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 635-1?

Key specifications for 635-1: Style Designator: BEND TYPE; Flange Outside Height: 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES IN; Flange Inside Width: 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES IN; Flexibility: RIGID ALL TUBING SEGMENT. 28 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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