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Technical Data Sheet
PartsTable / COMPONENT / 4B-18
4B-18 ✓ 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 ATTENUATOR,FIXED is a the manufacturer industrial component. Key specifications include material: STEEL BODY, thickness: 0.1560 INCHES NOMINAL IN, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, power_rating: 2.0 WATTS AVERAGE, bore_diameter: 0.1880 INCHES MINIMUM AND 0.1881 INCHES MAXIMUM IN, overall_length: 1.210 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 3040-00-715-7033, 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
4B-18
NSN: 3040-00-715-7033
FSC: 3040
CAGE: 07CR8 — ADVANCED LOGIC RESOURCES INC DBA ALR (USA)
SPECIFICATIONS
materialSTEEL BODY
thickness0.1560 INCHES NOMINAL IN
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
power_rating2.0 WATTS AVERAGE
bore_diameter0.1880 INCHES MINIMUM AND 0.1881 INCHES MAXIMUM IN
overall_length1.210 INCHES NOMINAL IN
frequency_range0.000 HERTZ MINIMUM AND 4.000 GIGAHERTZ MAXIMUM
mounting_methodCONNECTOR
outside_diameter0.5620 INCHES NOMINAL IN
overall_diameter0.375 INCHES MAXIMUM IN
style_designatorROUND, SINGLE BOLT SECURED
surface_treatmentPASSIVATE BODY
NSN3040-00-715-7033
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,FIXED TITLE COMPONENT PN 4B-18 MFR ATTENUATOR,FIXED
KEY FEATURES
•
SURFACE TREATMENT: PASSIVATE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL COMP 303
•
STYLE DESIGNATOR: ROUND, SINGLE BOLT SECURED
•
THICKNESS: 0.1560 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 56
•
NOMINAL THREAD SIZE: 0.086 INCHES IN
•
OUTSIDE DIAMETER: 0.5620 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPASSIVATE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764, TYPE 303-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 303
STYLE DESIGNATORROUND, SINGLE BOLT SECURED
THICKNESS0.1560 INCHES NOMINAL IN
THREAD QUANTITY PER INCH56
NOMINAL THREAD SIZE0.086 INCHES IN
OUTSIDE DIAMETER0.5620 INCHES NOMINAL IN
BORE DIAMETER0.1880 INCHES MINIMUM AND 0.1881 INCHES MAXIMUM IN
CLAMP SECURING HOLE STYLETHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
03-12Interchangeable
interchangeable cross-reference
interchangeable
CG112-9-16DIAInterchangeable
interchangeable cross-reference
interchangeable
932422-2Interchangeable
interchangeable cross-reference
interchangeable
C64Interchangeable
interchangeable cross-reference
interchangeable
932422-5Interchangeable
interchangeable cross-reference
interchangeable
10669696Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4B-18?
4B-18 is a ATTENUATOR,FIXED.
What parts can replace 4B-18?
There are 21 known substitutes for 4B-18: 03-12, CG112-9-16DIA, 932422-2 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4B-18?
4B-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-715-7033. 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