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Technical Data Sheet
PartsTable / COMPONENT / 90-641-2
90-641-2 ✓ Verified by PartsTable
Equip · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The WAVEGUIDE ASSEMBLY is a Equip industrial component. Key specifications include material: COPPER ALLOY ALL TUBING SEGMENT AND FLANGE, flexibility: RIGID SINGLE TUBING SEGMENT, flange_depth: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN, flange_style: COVER TYPE ALL FLANGES, style_designator: STRAIGHT TYPE, waveguide_length: 3.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-880-2134, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
90-641-2
NSN: 5985-00-880-2134
FSC: 5985
CAGE: 0R8N4 — ADVANCED TECHNICAL MATERIALS, INC. DBA A T M (USA)
SPECIFICATIONS
materialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
flexibilityRIGID SINGLE TUBING SEGMENT
flange_depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM ALL FLANGES IN
flange_styleCOVER TYPE ALL FLANGES
flange_quantity2
style_designatorSTRAIGHT TYPE
waveguide_length3.000 INCHES NOMINAL IN
precious_materialSILVER
surface_treatmentSILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES
operating_pressure15.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM LBS
flange_inside_width1.003 INCHES MINIMUM AND 1.006 INCHES MAXIMUM ALL FLANGES IN
flange_inside_height0.503 INCHES MINIMUM AND 0.506 INCHES MAXIMUM ALL FLANGES IN
NSN5985-00-880-2134
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Equip WAVEGUIDE ASSEMBLY TITLE COMPONENT PN 90-641-2 MFR Equip WAVEGUIDE ASSEMBLY
KEY FEATURES
•
FLANGE QUANTITY: 2
•
WAVEGUIDE INSIDE HEIGHT: 0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
•
FLANGE CONNECTING FACILITY AND QUANTITY: 4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
•
SURFACE TREATMENT: SILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES
•
MATERIAL: COPPER ALLOY ALL TUBING SEGMENT AND FLANGE
•
WAVEGUIDE INSIDE WIDTH: 0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN
•
PRECIOUS MATERIAL AND LOCATION: INTERNAL SURFACES SILVER
•
FSC APPLICATION DATA: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE QUANTITY2
WAVEGUIDE INSIDE HEIGHT0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
FLANGE CONNECTING FACILITY AND QUANTITY4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
SURFACE TREATMENTSILVER ALL TUBING SEGMENT AND FLANGE INSIDE SURFACES
MATERIALCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
WAVEGUIDE INSIDE WIDTH0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM IN
PRECIOUS MATERIAL AND LOCATIONINTERNAL SURFACES SILVER
FSC APPLICATION DATAANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
PRECIOUS MATERIALSILVER
WAVEGUIDE OUTSIDE HEIGHT0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
6412Interchangeable
interchangeable cross-reference
interchangeable
5679Interchangeable
interchangeable cross-reference
interchangeable
412Interchangeable
interchangeable cross-reference
interchangeable
271887Interchangeable
interchangeable cross-reference
interchangeable
PB2086T0PB2088Interchangeable
interchangeable cross-reference
interchangeable
PB2088Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 90-641-2?
90-641-2 is a WAVEGUIDE ASSEMBLY manufactured by Equip.
What parts can replace 90-641-2?
There are 21 known substitutes for 90-641-2: 6412, 5679, 412 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90-641-2?
90-641-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-880-2134. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026