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PartsTable / COMPONENT / 12998-1
12998-1 ✓ Verified by PartsTable
— · 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 the manufacturer industrial component. Key specifications include material: RUBBER SILICONE SINGLE TUBING JACKET, flexibility: FLEXIBLE SINGLE TUBING SEGMENT, flange_depth: 0.750 INCHES NOMINAL SECOND FLANGE IN, flange_style: COVER TYPE FIRST FLANGE, style_designator: STRAIGHT TYPE, waveguide_length: 6.690 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 5985-00-199-0183, 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
12998-1
NSN: 5985-00-199-0183
FSC: 5985
CAGE: 54647 — MICROTECH INC DBA MICROTECH INC (USA)
SPECIFICATIONS
materialRUBBER SILICONE SINGLE TUBING JACKET
flexibilityFLEXIBLE SINGLE TUBING SEGMENT
flange_depth0.750 INCHES NOMINAL SECOND FLANGE IN
flange_styleCOVER TYPE FIRST FLANGE
flange_quantity2
style_designatorSTRAIGHT TYPE
waveguide_length6.690 INCHES NOMINAL IN
surface_treatmentSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
flange_inside_width3.002 INCHES MINIMUM AND 3.005 INCHES MAXIMUM SECOND FLANGE IN
flange_inside_height1.502 INCHES MINIMUM AND 1.505 INCHES MAXIMUM FIRST FLANGE IN
waveguide_inside_width2.835 INCHES MINIMUM AND 2.845 INCHES MAXIMUM IN
end_item_identificationAN/AQS-24A, UNIT 2 CONTROL AND DATA PROCESSOR A
NSN5985-00-199-0183
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WAVEGUIDE ASSEMBLY TITLE COMPONENT PN 12998-1 MFR WAVEGUIDE ASSEMBLY
KEY FEATURES
•
FLANGE OUTSIDE DIAMETER: 5.312 INCHES NOMINAL FIRST FLANGE IN
•
INSERTION LOSS IN DECIBELS: 0.06
•
FLANGE CONNECTING FACILITY AND QUANTITY: 8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY
•
FLANGE INSIDE HEIGHT: 1.502 INCHES MINIMUM AND 1.505 INCHES MAXIMUM FIRST FLANGE IN
•
MATERIAL: RUBBER SILICONE SINGLE TUBING JACKET
•
SURFACE TREATMENT: SILVER SINGLE TUBING SEGMENT INSIDE SURFACES
•
FLANGE INSIDE WIDTH: 3.002 INCHES MINIMUM AND 3.005 INCHES MAXIMUM SECOND FLANGE IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE OUTSIDE DIAMETER5.312 INCHES NOMINAL FIRST FLANGE IN
INSERTION LOSS IN DECIBELS0.06
FLANGE CONNECTING FACILITY AND QUANTITY8 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY
FLANGE INSIDE HEIGHT1.502 INCHES MINIMUM AND 1.505 INCHES MAXIMUM FIRST FLANGE IN
FLANGE OUTSIDE DIAMETER5.312 INCHES NOMINAL SECOND FLANGE IN
MATERIALRUBBER SILICONE SINGLE TUBING JACKET
SURFACE TREATMENTSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
FLANGE INSIDE WIDTH3.002 INCHES MINIMUM AND 3.005 INCHES MAXIMUM SECOND FLANGE IN
FLANGE DEPTH0.750 INCHES NOMINAL SECOND FLANGE IN
FLEXIBILITYFLEXIBLE SINGLE TUBING SEGMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
148733R91Interchangeable
interchangeable cross-reference
interchangeable
30711Interchangeable
interchangeable cross-reference
interchangeable
2261-53Interchangeable
interchangeable cross-reference
interchangeable
129981Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12998-1?
12998-1 is a WAVEGUIDE ASSEMBLY.
What parts can replace 12998-1?
There are 4 known substitutes for 12998-1: 148733R91, 30711, 2261-53 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12998-1?
12998-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-199-0183. 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