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Technical Data Sheet
PartsTable / COMPONENT / B-345-.50
B-345-.50 ✓ Verified by PartsTable
— · GATE VALVE
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

The B-345-.50 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-288-7066, 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
B-345-.50
NSN: 4820-00-288-7066
FSC: 4820
CAGE: 82666 — STOCKHAM VALVES AND FITTINGS INC (USA)
SPECIFICATIONS
Part NumberB-345-.50
NSN4820-00-288-7066
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-345-.50 · 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
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
MOUNTING POSITION: HORIZONTAL
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D/D FED SPEC SINGLE MATERIAL RESPONSE BODY
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
MATERIAL: COPPER ALLOY 922 SEAT
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
MOUNTING POSITIONHORIZONTAL
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VALVE OPERATION METHODAUTOMATIC
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D/D FED SPEC SINGLE MATERIAL RESPONSE BODY
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
MATERIALCOPPER ALLOY 922 SEAT
MATERIALCOPPER ALLOY 922 BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4/D FED SPEC SINGLE MATERIAL RESPONSE SEAT
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
L100J150Interchangeable
interchangeable cross-reference
interchangeable
270-100-0605Interchangeable
interchangeable cross-reference
interchangeable
0605Interchangeable
interchangeable cross-reference
interchangeable
02665PInterchangeable
interchangeable cross-reference
interchangeable
TVC60000Interchangeable
interchangeable cross-reference
interchangeable
TVCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-345-.50?
B-345-.50 is a B-345-.50.
What parts can replace B-345-.50?
There are 33 known substitutes for B-345-.50: L100J150, 270-100-0605, 0605 and 30 more. Substitute compatibility should be verified for your specific system.
Is B-345-.50 still available?
B-345-.50 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026