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Technical Data Sheet

P644U — Technical Data Sheet

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AMETEK, INC. DIV AEROSPACE & DEFENSE · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

GAGE,COMPOUND PRESSURE-VACUUM,DI. Key specifications include MATERIAL: COPPER ALLOY 511 ACTUATING ELEMENT, DIAL SIZE: 2-1/2 IN. DIA IN, BEZEL TYPE: PRESSED ON W/ RETAINING BEZEL RING, SCALE NAME: PRESSURE AND VACUUM, SCALE TYPE: MULTIPLE, SCALE RANGE: +0.0 TO 30.0 INCHES OF MERCURY AND +25.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-515-5385, 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
P644U
NSN: 6685-00-515-5385
FSC: 6685
CAGE: 61349 — AMETEK, INC. DIV AEROSPACE & DEFENSE (USA)
SPECIFICATIONS
MATERIALCOPPER ALLOY 511 ACTUATING ELEMENT
DIAL SIZE2-1/2 IN. DIA IN
BEZEL TYPEPRESSED ON W/ RETAINING BEZEL RING
SCALE NAMEPRESSURE AND VACUUM
SCALE TYPEMULTIPLE
SCALE RANGE+0.0 TO 30.0 INCHES OF MERCURY AND +25.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS
POINTER TYPEINDICATING
ADJUSTABILITYNONADJUSTABLE
OVERALL DEPTH1.078 INCHES NOMINAL IN
POINTER COLORWHITE
STUD LOCATIONBACK
STUD QUANTITY2
NSN6685-00-515-5385
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: AMETEK, INC. DIV AEROSPACE & DEFENSE GAGE,COMPOUND PRESSURE-VACUUM,DI TITLE COMPONENT PN P644U MFR AMETEK, INC. DIV AEROSPACE & DEFENSE GAGE,COMPOUND PRESSURE
KEY FEATURES
MATERIAL: BRASS CASE
COLOR: BLACK CASE
OVERALL DIAMETER: 2.810 INCHES NOMINAL IN
SURFACE TREATMENT: ENAMEL CASE
FSC APPLICATION DATA: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
CONNECTION SIZE: 0.438 IN. NPT DIA IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALBRASS CASE
COLORBLACK CASE
MATERIALBRONZE ACTUATING ELEMENT
OVERALL DIAMETER2.810 INCHES NOMINAL IN
SURFACE TREATMENTENAMEL CASE
FSC APPLICATION DATAGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
OVERALL DEPTH1.230 INCHES NOMINAL IN
CONNECTION SIZE0.438 IN. NPT DIA IN
SCALE ACCURACY2 PERCENT MIDDLE HALF OF RANGE,3 PERCENT REMAINDER
END ITEM IDENTIFICATIONPOSEIDON MATERIAL; PROPULSION SYSTEMS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
34U-181Interchangeable
interchangeable cross-reference
interchangeable
000527378Interchangeable
interchangeable cross-reference
interchangeable
76002Interchangeable
interchangeable cross-reference
interchangeable
101003Interchangeable
interchangeable cross-reference
interchangeable
874131Interchangeable
interchangeable cross-reference
interchangeable
851SA201Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P644U?
P644U is a GAGE,COMPOUND PRESSURE-VACUUM,DI manufactured by AMETEK, INC. DIV AEROSPACE & DEFENSE.
What parts can replace P644U?
There are 20 known substitutes for P644U: 34U-181, 000527378, 76002 and 17 more. Substitute compatibility should be verified for your specific system.
Is P644U still available?
P644U is currently cancelled.
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