PartsTable
Technical Data Sheet
B345 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include material: COPPER ALLOY OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN, OPTIONAL END (PIPE) ALL ENDS, special_features: SWING TYPE; Y-PATTERN, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-200-0745, 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
MRO MRO_GENERAL B345
NSN: 4820-00-200-0745
FSC: 4820
CAGE: 82666 — STOCKHAM VALVES AND FITTINGS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN, OPTIONAL END (PIPE) ALL ENDS
special_featuresSWING TYPE; Y-PATTERN
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
mounting_positionHORIZONTAL
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size2.000 INCHES ALL ENDS IN
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-00-200-0745
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: B345 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD SERIES DESIGNATOR: NPT ALL ENDS
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
THREAD DIRECTION: RIGHT-HAND ALL ENDS
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
DISK LOADING METHOD: SPRING
MOUNTING POSITION: HORIZONTAL OR VERTICAL
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE SEAT
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPT ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
SPECIAL FEATURESSWING CHECK TYPE
DISK LOADING METHODSPRING
MOUNTING POSITIONHORIZONTAL OR VERTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE SEAT
SPECIFICATION/STANDARD DATA59646-MSS AP-80 MANUFACTURERS STANDARD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
B-345-1Interchangeable
interchangeable cross-reference
interchangeable
B345Interchangeable
interchangeable cross-reference
interchangeable
554Interchangeable
interchangeable cross-reference
interchangeable
762AInterchangeable
interchangeable cross-reference
interchangeable
254Interchangeable
interchangeable cross-reference
interchangeable
236Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B345?
B345 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace B345?
There are 19 known substitutes for B345: B-345-1, B345, 554 and 16 more. Substitute compatibility should be verified for your specific system.
Is B345 still available?
B345 is currently cancelled.
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