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PartsTable / COMPONENT / B2 1-2 4
B2 1-2 4 ✓ 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 BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include shape: DIAMOND, material: STEEL, body_style: PLAIN, SOLID, bore_style: PLAIN BOTH ENDS, tooth_form: STANDARD, point_radius: 0.016 INCHES 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 3020-00-229-6942, 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
B2 1-2 4
NSN: 3020-00-229-6942
FSC: 3020
CAGE: 00328 — DESIGNATRONICS INCORPORATED DIV STERLING INSTRUMENTS DIV (USA)
SPECIFICATIONS
shapeDIAMOND
materialSTEEL
body_stylePLAIN, SOLID
bore_stylePLAIN BOTH ENDS
tooth_formSTANDARD
point_radius0.016 INCHES IN
bore_diameter0.1562 INCHES NOMINAL IN
overall_width0.188 INCHES NOMINAL IN
alignment_typeRIGID
overall_length0.188 INCHES NOMINAL IN
pitch_diameter0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
pressure_angle20.0000 DEGREES
NSN3020-00-229-6942
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BEARING,ROLLER,NEEDLE TITLE COMPONENT PN B2 1-2 4 MFR BEARING,ROLLER,NEEDLE
KEY FEATURES
•
BODY STYLE: PLAIN, SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
TEETH QUANTITY: 24
•
BORE STYLE: PLAIN BOTH ENDS
•
STYLE DESIGNATOR: PROTRUDING HUB
•
BACKLASH DESIGNATION: GRADE C
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL OVERALL LENGTH: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLEPLAIN, SOLID
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TEETH QUANTITY24
BORE STYLEPLAIN BOTH ENDS
STYLE DESIGNATORPROTRUDING HUB
BACKLASH DESIGNATIONGRADE C
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL OVERALL LENGTH0.312 INCHES IN
HUB NOMINAL DIAMETER0.312 INCHES FIRST END IN
PRECISION CLASSIFICATIONQUALITY NUMBER 10
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
537804Interchangeable
interchangeable cross-reference
interchangeable
2 1/2 4-OHInterchangeable
interchangeable cross-reference
interchangeable
B2 1-2 40HInterchangeable
interchangeable cross-reference
interchangeable
B-2 1/2 4Interchangeable
interchangeable cross-reference
interchangeable
24275Interchangeable
interchangeable cross-reference
interchangeable
125-3818Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B2 1-2 4?
B2 1-2 4 is a BEARING,ROLLER,NEEDLE.
What parts can replace B2 1-2 4?
There are 13 known substitutes for B2 1-2 4: 537804, 2 1/2 4-OH, B2 1-2 40H and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B2 1-2 4?
B2 1-2 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-229-6942. 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