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US3-18 — Technical Data Sheet

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WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The SHAFT,STRAIGHT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, end_similarity: IDENTICAL, overall_length: 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN, surface_finish: 8.0 MICROINCHES, first_end_style: PLAIN, first_end_diameter: 0.2496 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3040-00-471-8612, 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
US3-18
NSN: 3040-00-471-8612
FSC: 3040
CAGE: 00328 — DESIGNATRONICS INCORPORATED DIV STERLING INSTRUMENTS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 303
end_similarityIDENTICAL
overall_length2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
surface_finish8.0 MICROINCHES
first_end_stylePLAIN
first_end_diameter0.2496 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-764,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE
NSN3040-00-471-8612
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,STRAIGHT TITLE COMPONENT PN US3-18 MFR SHAFT,STRAIGHT
KEY FEATURES
•
FIRST END STYLE: PLAIN
•
MATERIAL: STEEL COMP 303
•
SURFACE FINISH: 8.0 MICROINCHES
•
FIRST END DIAMETER: 0.2496 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
•
END SIMILARITY: IDENTICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
FIRST END STYLEPLAIN
MATERIALSTEEL COMP 303
SURFACE FINISH8.0 MICROINCHES
FIRST END DIAMETER0.2496 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
OVERALL LENGTH2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
END SIMILARITYIDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764,CONDITION A FED SPEC SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
657C0840InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A622InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SA1652-848InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
BP3621InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
78219InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LJ622000InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is US3-18?
US3-18 is a SHAFT,STRAIGHT.
What parts can replace US3-18?
There are 15 known substitutes for US3-18: 657C0840, A622, SA1652-848 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for US3-18?
US3-18 is cataloged in the Federal Logistics Information System under NSN 3040-00-471-8612. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026