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U8491 — DISK,COLOR STANDARDS

✓ Government record, cited
SIEMENS WATER TECHNOLOGIES CORP. DIV WALLACE & TIERNAN PRODUCTS · COMPONENT
PRODUCT OVERVIEW

U8491: DISK,COLOR STANDARDS.

The DISK,COLOR STANDARDS is a SIEMENS WATER TECHNOLOGIES CORP. DIV WALLACE & TIERNAN PRODUCTS industrial component. Key specifications include COLOR RANGE: +4.4 TO 6.0 PH, COLOR GRADUATION: 4.4 AND 4.6 AND 4.8 AND 5.0 AND 5.2 AND 5.4 AND 5.6 AND 5.8 AND 6.0, OVERALL DIAMETER: 3.438 INCHES NOMINAL IN, OVERALL THICKNESS: 0.312 INCHES NOMINAL IN, NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS, LIGHT TYPE FOR WHICH DESIGNED: ARTIFICIAL LIGHT AND DAYLIGHT.

This part is cataloged in the U.S. Government catalog under NSN 6630-00-250-6301, 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
U8491
NSN: 6630-00-250-6301
FSC: 6630 — Chemical Analysis Instruments
CAGE: 79172 — SIEMENS WATER TECHNOLOGIES CORP. DIV WALLACE & TIERNAN PRODUCTS (USA)
SPECIFICATIONS
COLOR RANGE+4.4 TO 6.0 PH
COLOR GRADUATION4.4 AND 4.6 AND 4.8 AND 5.0 AND 5.2 AND 5.4 AND 5.6 AND 5.8 AND 6.0
OVERALL DIAMETER3.438 INCHES NOMINAL IN
OVERALL THICKNESS0.312 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS
LIGHT TYPE FOR WHICH DESIGNEDARTIFICIAL LIGHT AND DAYLIGHT
NSN6630-00-250-6301
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: SIEMENS WATER TECHNOLOGIES CORP. DIV WALLACE & TIERNAN PRODUCTS DISK,COLOR STANDARDS TITLE COMPONENT PN U8491 MFR SIEMENS WATER TECHNOLOGIES CORP. DIV WALLACE & TIERNAN PRODUCTS DISK,COLOR STANDARDS
KEY FEATURES
•
COLOR RANGE: +4.4 TO 6.0 PH
•
LIGHT TYPE FOR WHICH DESIGNED: ARTIFICIAL LIGHT AND DAYLIGHT
•
OVERALL DIAMETER: 3.438 INCHES NOMINAL IN
•
COLOR GRADUATION: 4.4 AND 4.6 AND 4.8 AND 5.0 AND 5.2 AND 5.4 AND 5.6 AND 5.8 AND 6.0
•
OVERALL THICKNESS: 0.312 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS
TECHNICAL CHARACTERISTICS
COLOR RANGE+4.4 TO 6.0 PH
LIGHT TYPE FOR WHICH DESIGNEDARTIFICIAL LIGHT AND DAYLIGHT
OVERALL DIAMETER3.438 INCHES NOMINAL IN
COLOR GRADUATION4.4 AND 4.6 AND 4.8 AND 5.0 AND 5.2 AND 5.4 AND 5.6 AND 5.8 AND 6.0
OVERALL THICKNESS0.312 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS
SUBSTITUTES & CROSS-REFERENCES 2
MIL-D-537 TYPE 1 CLASS 2Reference document
Same NSN cross-reference
Reference document — Identification reference
150-DReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is U8491?
U8491 is a DISK,COLOR STANDARDS manufactured by SIEMENS WATER TECHNOLOGIES CORP. DIV WALLACE & TIERNAN PRODUCTS.
What parts can replace U8491?
There are 2 known substitutes for U8491: MIL-D-537 TYPE 1 CLASS 2, 150-D. Substitute compatibility should be verified for your specific system.
What is the NSN for U8491?
U8491 is cataloged in the U.S. Government catalog under NSN 6630-00-250-6301. This indicates validated use in U.S. government and defense supply chains.
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