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PartsTable / COMPONENT / C303R-6
C303R-6 ✓ 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 RULE,MACHINIST'S is a the manufacturer industrial component. Key specifications include width: 0.500 INCHES NOMINAL IN, length: 6.000 INCHES IN, material: STEEL, thickness: 0.016 INCHES NOMINAL IN, special_features: FLEXIBLE; SATIN CHROME FINISH, edge_smallest_graduation_unit: 1/64 INCH AND 1/50 INCH AND 1/32 INCH AND 1/10 INCH 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 5210-01-520-8420, 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
C303R-6
NSN: 5210-01-520-8420
FSC: 5210
CAGE: 57163 — L.S. STARRETT COMPANY (THE) DIV TOOL DIVISION (USA)
SPECIFICATIONS
width0.500 INCHES NOMINAL IN
length6.000 INCHES IN
materialSTEEL
thickness0.016 INCHES NOMINAL IN
special_featuresFLEXIBLE; SATIN CHROME FINISH
edge_smallest_graduation_unit1/64 INCH AND 1/50 INCH AND 1/32 INCH AND 1/10 INCH IN
NSN5210-01-520-8420
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RULE,MACHINIST'S TITLE COMPONENT PN C303R-6 MFR RULE,MACHINIST'S
KEY FEATURES
•
THICKNESS: 0.016 INCHES NOMINAL IN
•
EDGE SMALLEST GRADUATION UNIT: 1/64 INCH AND 1/50 INCH AND 1/32 INCH AND 1/10 INCH IN
•
LENGTH: 6.000 INCHES IN
•
MATERIAL: STEEL
•
WIDTH: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.016 INCHES NOMINAL IN
EDGE SMALLEST GRADUATION UNIT1/64 INCH AND 1/50 INCH AND 1/32 INCH AND 1/10 INCH IN
LENGTH6.000 INCHES IN
SPECIAL FEATURESFLEXIBLE; SATIN CHROME FINISH
MATERIALSTEEL
WIDTH0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
51334Interchangeable
interchangeable cross-reference
interchangeable
FFB171TYPE115Interchangeable
interchangeable cross-reference
interchangeable
T3780Interchangeable
interchangeable cross-reference
interchangeable
6270CInterchangeable
interchangeable cross-reference
interchangeable
A278657Interchangeable
interchangeable cross-reference
interchangeable
657572Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C303R-6?
C303R-6 is a RULE,MACHINIST'S.
What parts can replace C303R-6?
There are 11 known substitutes for C303R-6: 51334, FFB171TYPE115, T3780 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C303R-6?
C303R-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5210-01-520-8420. 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