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Technical Data Sheet
PartsTable / COMPONENT / B44-3
B44-3 ✓ Verified by PartsTable
Bosch · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The B443 provides 3G/4G IP communication over a GPRS/EDGE/UMTS/HSPA+ cellular network by plugging into any compatible Bosch control panel or B450 Conettix Plug-in Communicator Interface. Typical applications are:<br>• Alarm reporting to a central station<br>• Remote control panel programming through Remote Programming Software with supported control panels<br>• Remote monitoring and control through a mobile application with supported control panels<br>• Personal notification using SMS for compatible control panels<br>The B443 is built for a wide variety of secure commercial and industrial applications. Flexible endto-end path supervision, 128-bit to 256-bit AES encryption, and anti-substitution features make B443 desirable for high security and fire monitoring applications.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-125-7873, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
B44-3
NSN: 4720-00-125-7873
FSC: 4720
CAGE: 61501 — SAINT-GOBAIN PERFORMANCE PLASTICS (USA)
SPECIFICATIONS
materialALUMINUM OXIDE
body_width4.000 INCHES NOMINAL IN
cover_typeBLANK
body_length4.000 INCHES NOMINAL IN
flexibilityFLEXIBLE
temp_rating-49.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_depth2.040 INCHES NOMINAL IN
overall_width7.75 INCHES NOMINAL IN
exterior_colorCLEAR
overall_height16.0 INCHES NOMINAL IN
inside_diameter0.250 INCHES NOMINAL IN
outside_diameter0.438 INCHES NOMINAL IN
NSN4720-00-125-7873
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: B44-3 · Bosch ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
TEMP RATING: -49.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MATERIAL: PLASTIC VINYL TUBE
•
INSIDE SURFACE CONDITION: SMOOTH
•
OPERATING PRESSURE: 45.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
FLEXIBILITY: FLEXIBLE
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
EXTERIOR COLOR: CLEAR
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.188 INCHES NOMINAL IN
TEMP RATING-49.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
MATERIALPLASTIC VINYL TUBE
INSIDE SURFACE CONDITIONSMOOTH
OPERATING PRESSURE45.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FLEXIBILITYFLEXIBLE
CROSS-SECTIONAL SHAPE STYLEROUND
EXTERIOR COLORCLEAR
MINIMUM TENSILE STRENGTH2300 POUNDS PER SQUARE INCH LBS
NONMETALLIC HARDNESS RATING63.0 NOMINAL SHORE DUROMETER A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
74995Interchangeable
interchangeable cross-reference
interchangeable
18860F4Interchangeable
interchangeable cross-reference
interchangeable
75-310-700Interchangeable
interchangeable cross-reference
interchangeable
77716Interchangeable
interchangeable cross-reference
interchangeable
248170Interchangeable
interchangeable cross-reference
interchangeable
1342831Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B44-3?
B44-3 is a RESISTOR,FIXED,WIRE WOUND manufactured by Bosch.
What parts can replace B44-3?
There are 11 known substitutes for B44-3: 74995, 18860F4, 75-310-700 and 8 more. Substitute compatibility should be verified for your specific system.
Is B44-3 still available?
B44-3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026