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Technical Data Sheet
CF644 ✓ 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 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, tapered_end: NOT INCLUDED, beveled_edge: NOT INCLUDED, special_features: FLEXIBLE; GRADUATED IN 8THS AND 16THS ON FRONT SIDE; 32NDS AND 64THS ON REVERSE; SATIN CHROME FINISH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5210-01-368-4512, 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
CF644
NSN: 5210-01-368-4512
FSC: 5210
CAGE: 3JKA4 — GENERAL TOOLS MANUFACTURING CO., LLC. (USA)
SPECIFICATIONS
width0.500 INCHES NOMINAL IN
length6.000 INCHES IN
materialSTEEL
tapered_endNOT INCLUDED
beveled_edgeNOT INCLUDED
special_featuresFLEXIBLE; GRADUATED IN 8THS AND 16THS ON FRONT SIDE; 32NDS AND 64THS ON REVERSE; SATIN CHROME FINISH
reading_directionRIGHT
edge_smallest_graduation_unit1/64 INCH AND 1/32 INCH AND 1/16 INCH AND 1/8 INCH IN
NSN5210-01-368-4512
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RULE,MACHINIST'S TITLE COMPONENT PN CF644 MFR RULE,MACHINIST'S
KEY FEATURES
EDGE SMALLEST GRADUATION UNIT: 1/64 INCH AND 1/32 INCH AND 1/16 INCH AND 1/8 INCH IN
WIDTH: 0.500 INCHES NOMINAL IN
LENGTH: 6.000 INCHES IN
READING DIRECTION: RIGHT
BEVELED EDGE: NOT INCLUDED
TAPERED END: NOT INCLUDED
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
EDGE SMALLEST GRADUATION UNIT1/64 INCH AND 1/32 INCH AND 1/16 INCH AND 1/8 INCH IN
WIDTH0.500 INCHES NOMINAL IN
LENGTH6.000 INCHES IN
READING DIRECTIONRIGHT
BEVELED EDGENOT INCLUDED
SPECIAL FEATURESFLEXIBLE; GRADUATED IN 8THS AND 16THS ON FRONT SIDE; 32NDS AND 64THS ON REVERSE; SATIN CHROME FINISH
TAPERED ENDNOT INCLUDED
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
330-18Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEA4Interchangeable
interchangeable cross-reference
interchangeable
USAF330-18Interchangeable
interchangeable cross-reference
interchangeable
213-103Interchangeable
interchangeable cross-reference
interchangeable
213BInterchangeable
interchangeable cross-reference
interchangeable
8168853Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CF644?
CF644 is a RULE,MACHINIST'S.
What parts can replace CF644?
There are 18 known substitutes for CF644: 330-18, FFB571TYPEA4, USAF330-18 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CF644?
CF644 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5210-01-368-4512. This indicates validated use in U.S. government and defense supply chains.
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