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Technical Data Sheet
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143-446 — Technical Data Sheet

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— · 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 143-446 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 6640-00-442-9025, 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
143-446
NSN: 6640-00-442-9025
FSC: 6640
CAGE: 15481 — CURTIN MATHESON SCIENTIFIC INC (USA)
SPECIFICATIONS
Part Number143-446
NSN6640-00-442-9025
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 143-446 TITLE COMPONENT PN 143-446 MFR 143-446
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 1WIDE RANGE AND 2 STYLE
•
PHYSICAL FORM: ROLL
•
LENGTH: 15.000 FEET NOMINAL FT
•
WIDTH: 0.250 INCHES NOMINAL IN
•
PH COLOR CHART GRADUATION: 2.0 AND 4.0 AND 6.0 AND 8.0 AND 10.0
•
PH VALUE RANGE: +2.0 TO 10.0
TECHNICAL CHARACTERISTICS
NONDEFINITIVE SPEC/STD DATAA CLASS AND 1WIDE RANGE AND 2 STYLE
PHYSICAL FORMROLL
PART NAME ASSIGNED BY CONTROLLING AGENCYTEST PAPER AND COLOR CHART HYDROGEN ION RANGE 2 TO 10 PH 15FT 5S FT
LENGTH15.000 FEET NOMINAL FT
WIDTH0.250 INCHES NOMINAL IN
PH COLOR CHART GRADUATION2.0 AND 4.0 AND 6.0 AND 8.0 AND 10.0
PH VALUE RANGE+2.0 TO 10.0
SPECIAL FEATURESCOLOR CHART VISIBLE THROUGH BOTH SIDES,MARKED FOR EVEN PH UNITS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
NNNT001529InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7540InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0638H10InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
14-853-90InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
65-7570-45InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3110C50InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 143-446?
143-446 is a 143-446.
What parts can replace 143-446?
There are 17 known substitutes for 143-446: NNNT001529, 7540, 0638H10 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 143-446?
143-446 is cataloged in the Federal Logistics Information System under NSN 6640-00-442-9025. 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: September 2026