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Technical Data Sheet
311-1280A ✓ 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: PLASTIC PHENOLIC AND COTTON OVERALL, body_style: PLAIN, SOLID, teeth_type: SINGLE HELIX, tooth_form: STANDARD, helix_angle: 20.0000 DEGREES, pitch_diameter: 0.7760 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-251-0952, 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
311-1280A
NSN: 3020-00-251-0952
FSC: 3020
CAGE: 21900 — FEDERAL DIV OF VICTOREEN INSTRUMENT CO INC (USA)
SPECIFICATIONS
materialPLASTIC PHENOLIC AND COTTON OVERALL
body_stylePLAIN, SOLID
teeth_typeSINGLE HELIX
tooth_formSTANDARD
helix_angle20.0000 DEGREES
pitch_diameter0.7760 INCHES NOMINAL IN
pressure_angle14.5000 DEGREES
teeth_quantity35
tooth_directionLEFT
style_designatorPROTRUDING HUB
attachment_methodMOUNTING HOLE
face_nominal_width0.297 INCHES IN
NSN3020-00-251-0952
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN 311-1280A MFR GEAR,HELICAL
KEY FEATURES
ATTACHMENT METHOD: MOUNTING HOLE
TEETH QUANTITY: 35
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-15035,TYPE FBI MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE THREAD QUANTITY PER INCH: 36 TRANSVERSELY THROUGH HUB FIRST END
TOOTH DIRECTION: LEFT
NOMINAL OVERALL LENGTH: 0.703 INCHES IN
MOUNTING HOLE TYPE AND QUANTITY: 2 THREADED TRANSVERSELY THROUGH HUB FIRST END
HELIX ANGLE: 20.0000 DEGREES
TECHNICAL CHARACTERISTICS (FLIS)
ATTACHMENT METHODMOUNTING HOLE
TEETH QUANTITY35
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-15035,TYPE FBI MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MOUNTING HOLE THREAD QUANTITY PER INCH36 TRANSVERSELY THROUGH HUB FIRST END
TOOTH DIRECTIONLEFT
NOMINAL OVERALL LENGTH0.703 INCHES IN
MOUNTING HOLE TYPE AND QUANTITY2 THREADED TRANSVERSELY THROUGH HUB FIRST END
HELIX ANGLE20.0000 DEGREES
BORE NOMINAL DIAMETER0.2500 INCHES BOTH ENDS IN
MATERIALPLASTIC PHENOLIC AND COTTON OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
11052Interchangeable
interchangeable cross-reference
interchangeable
131-309-3Interchangeable
interchangeable cross-reference
interchangeable
ST293Interchangeable
interchangeable cross-reference
interchangeable
WWV54Interchangeable
interchangeable cross-reference
interchangeable
1105-318Interchangeable
interchangeable cross-reference
interchangeable
QF06TTDB11A2-12VInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 311-1280A?
311-1280A is a GEAR,HELICAL.
What parts can replace 311-1280A?
There are 14 known substitutes for 311-1280A: 11052, 131-309-3, ST293 and 11 more. Substitute compatibility should be verified for your specific system.
Is 311-1280A still available?
311-1280A is currently cancelled.
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