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PartsTable / COMPONENT / SMB157221
SMB157221 ✓ 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 GEAR,BEVEL is a the manufacturer industrial component. Key specifications include body_style: PLAIN, SOLIDPLAIN, SOLID, teeth_type: SPIRALSPIRAL, pitch_diameter: 0.7500 INCHES NOMINAL0.7500 INCHES NOMINAL IN, tooth_direction: LEFTLEFT, style_designator: PERIPHERAL FACE, BACK HUB PROTRUDINGPERIPHERAL FACE, BACK HUB PROTRUDING, attachment_method: MOUNTING HOLEMOUNTING HOLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-511-4445, 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
SMB157221
NSN: 3020-00-511-4445
FSC: 3020
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
body_stylePLAIN, SOLIDPLAIN, SOLID
teeth_typeSPIRALSPIRAL
pitch_diameter0.7500 INCHES NOMINAL0.7500 INCHES NOMINAL IN
tooth_directionLEFTLEFT
style_designatorPERIPHERAL FACE, BACK HUB PROTRUDINGPERIPHERAL FACE, BACK HUB PROTRUDING
attachment_methodMOUNTING HOLEMOUNTING HOLE
surface_treatmentPASSIVATE OVERALLPASSIVATE OVERALL
face_nominal_width0.159 INCHES0.159 INCHES IN
hub_nominal_diameter0.562 INCHES SECOND END0.562 INCHES SECOND END IN
nominal_overall_length0.562 INCHES0.562 INCHES IN
nominal_outside_diameter0.7970 INCHES0.7970 INCHES IN
mounting_hole_type_and_quantity2 THREADED TRANSVERSELY THROUGH HUB FIRST END2 THREADED TRANSVERSELY THROUGH HUB FIRST END
NSN3020-00-511-4445
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,BEVEL TITLE COMPONENT PN SMB157221 MFR GEAR,BEVEL
KEY FEATURES
•
TOOTH DIRECTION: LEFTLEFT
•
FACE NOMINAL WIDTH: 0.159 INCHES0.159 INCHES IN
•
PITCH DIAMETER: 0.7500 INCHES NOMINAL0.7500 INCHES NOMINAL IN
•
NOMINAL OUTSIDE DIAMETER: 0.7970 INCHES0.7970 INCHES IN
•
MOUNTING HOLE TYPE AND QUANTITY: 2 THREADED TRANSVERSELY THROUGH HUB FIRST END2 THREADED TRANSVERSELY THROUGH HUB FIRST END
•
BODY STYLE: PLAIN, SOLIDPLAIN, SOLID
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.312 INCHES SECOND END0.312 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
TOOTH DIRECTIONLEFTLEFT
FACE NOMINAL WIDTH0.159 INCHES0.159 INCHES IN
PITCH DIAMETER0.7500 INCHES NOMINAL0.7500 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER0.7970 INCHES0.7970 INCHES IN
MOUNTING HOLE TYPE AND QUANTITY2 THREADED TRANSVERSELY THROUGH HUB FIRST END2 THREADED TRANSVERSELY THROUGH HUB FIRST END
BODY STYLEPLAIN, SOLIDPLAIN, SOLID
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALLMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.312 INCHES SECOND END0.312 INCHES SECOND END IN
TEETH TYPESPIRALSPIRAL
ATTACHMENT METHODMOUNTING HOLEMOUNTING HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
DD102Interchangeable
interchangeable cross-reference
interchangeable
34321Interchangeable
interchangeable cross-reference
interchangeable
8438501-2Interchangeable
interchangeable cross-reference
interchangeable
52-522Interchangeable
interchangeable cross-reference
interchangeable
26515Interchangeable
interchangeable cross-reference
interchangeable
413SInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMB157221?
SMB157221 is a GEAR,BEVEL.
What parts can replace SMB157221?
There are 9 known substitutes for SMB157221: DD102, 34321, 8438501-2 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB157221?
SMB157221 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-511-4445. 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