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Technical Data Sheet
A4038A ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The GEAR CLUSTER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, design_type: SPUR FIRST GEAR, construction: SOLID, surface_treatment: PASSIVATE OVERALL, hub_nominal_length: 0.359 INCHES SECOND END IN, hub_nominal_diameter: 0.125 INCHES FIRST END 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 3020-00-795-9535, 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
A4038A
NSN: 3020-00-795-9535
FSC: 3020
CAGE: 12511 — SIMMONDS PRECISION PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
design_typeSPUR FIRST GEAR
constructionSOLID
surface_treatmentPASSIVATE OVERALL
hub_nominal_length0.359 INCHES SECOND END IN
hub_nominal_diameter0.125 INCHES FIRST END IN
hub_style_designator1 STEP BOTH ENDS
nominal_overall_length0.800 INCHES IN
nominal_outside_diameter0.1710 INCHES SECOND GEAR IN
material_document_and_classificationQQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3020-00-795-9535
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR CLUSTER TITLE COMPONENT PN A4038A MFR GEAR CLUSTER
KEY FEATURES
HUB NOMINAL LENGTH: 0.359 INCHES SECOND END IN
HUB STYLE DESIGNATOR: PLAIN BETWEEN FIRST AND SECOND GEAR
DESIGN TYPE: SPUR SECOND GEAR
MATERIAL: STEEL COMP 416 OVERALL
NOMINAL OUTSIDE DIAMETER: 0.1710 INCHES SECOND GEAR IN
HUB NOMINAL DIAMETER: 0.089 INCHES BETWEEN FIRST AND SECOND GEAR IN
TECHNICAL CHARACTERISTICS (FLIS)
HUB NOMINAL LENGTH0.359 INCHES SECOND END IN
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
DESIGN TYPESPUR SECOND GEAR
MATERIALSTEEL COMP 416 OVERALL
NOMINAL OUTSIDE DIAMETER0.1710 INCHES SECOND GEAR IN
HUB NOMINAL DIAMETER0.089 INCHES BETWEEN FIRST AND SECOND GEAR IN
HUB NOMINAL DIAMETER0.078 INCHES SECOND END IN
HUB NOMINAL DIAMETER0.125 INCHES FIRST END IN
SURFACE TREATMENTPASSIVATE OVERALL
HUB NOMINAL LENGTH0.078 INCHES BETWEEN FIRST AND SECOND GEAR IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
3-8D1ABALLGR1Interchangeable
interchangeable cross-reference
interchangeable
B765239-1Interchangeable
interchangeable cross-reference
interchangeable
SP9Interchangeable
interchangeable cross-reference
interchangeable
A4038Interchangeable
Same NIIN cross-reference
interchangeable
7959535Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A4038A?
A4038A is a GEAR CLUSTER.
What parts can replace A4038A?
There are 5 known substitutes for A4038A: 3-8D1ABALLGR1, B765239-1, SP9 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A4038A?
A4038A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-795-9535. This indicates validated use in U.S. government and defense supply chains.
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