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Technical Data Sheet
T221-8 ✓ 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,HELICAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8620H OVERALL, body_style: WEBBED, SOLID, bore_style: W/ KEYWAY BOTH ENDS, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 23.4167 DEGREES. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-268-4199, 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
T221-8
NSN: 3020-00-268-4199
FSC: 3020
CAGE: 98435 — MARMON GROUP INC THE ACTIVE GEAR CO DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 8620H OVERALL
body_styleWEBBED, SOLID
bore_styleW/ KEYWAY BOTH ENDS
teeth_typeSINGLE HELIX
tooth_formSTANDARD
helix_angle23.4167 DEGREES
pitch_diameter6.0658 INCHES NOMINAL IN
pressure_angle20.0000 DEGREES
teeth_quantity43
tooth_directionRIGHT
style_designatorONE PROTRUDING HUB, ONE RECESSED HUB
face_nominal_width1.127 INCHES IN
NSN3020-00-268-4199
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN T221-8 MFR GEAR,HELICAL
KEY FEATURES
BODY STYLE: WEBBED, SOLID
PITCH DIAMETER: 6.0658 INCHES NOMINAL IN
TEETH TYPE: SINGLE HELIX
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END: 0.1953 INCHES FIRST END IN
TEETH QUANTITY: 43
HUB NOMINAL DIAMETER: 2.125 INCHES SECOND END IN
TOOTH DIRECTION: RIGHT
TOOTH FORM: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLEWEBBED, SOLID
PITCH DIAMETER6.0658 INCHES NOMINAL IN
TEETH TYPESINGLE HELIX
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.1953 INCHES FIRST END IN
TEETH QUANTITY43
HUB NOMINAL DIAMETER2.125 INCHES SECOND END IN
TOOTH DIRECTIONRIGHT
TOOTH FORMSTANDARD
NOMINAL OUTSIDE DIAMETER6.3480 INCHES IN
HUB STYLE DESIGNATORPLAIN BOTH ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
4637Interchangeable
interchangeable cross-reference
interchangeable
A-A-52160/2B58Interchangeable
interchangeable cross-reference
interchangeable
A-A-52160Interchangeable
interchangeable cross-reference
interchangeable
B58-2Interchangeable
interchangeable cross-reference
interchangeable
26821Interchangeable
interchangeable cross-reference
interchangeable
131MGH1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T221-8?
T221-8 is a GEAR,HELICAL.
What parts can replace T221-8?
There are 13 known substitutes for T221-8: 4637, A-A-52160/2B58, A-A-52160 and 10 more. Substitute compatibility should be verified for your specific system.
Is T221-8 still available?
T221-8 is currently cancelled.
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