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Technical Data Sheet
PartsTable / COMPONENT / B-319 2 1/2IN
B-319 2 1/2IN ✓ 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-319 2 1/2IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-4234, 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-319 2 1/2IN
NSN: 4820-00-287-4234
FSC: 4820
CAGE: 82666 — STOCKHAM VALVES AND FITTINGS INC (USA)
SPECIFICATIONS
Part NumberB-319 2 1/2IN
NSN4820-00-287-4234
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-319 2 1/2IN · 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 TYPE: THREADED INTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
FLOW CONTROL DEVICE: DISK
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SECOND RESPONSE DEGF
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
MATERIAL: COPPER ALLOY 836 OVERALL
•
MEDIA FOR WHICH DESIGNED: STEAM FIRST RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
FLOW CONTROL DEVICEDISK
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
THREAD DIRECTIONRIGHT-HAND ALL ENDS
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY 836 OVERALL
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
SPECIFICATION/STANDARD DATA59646-MSS SP-80 MANUFACTURERS STANDARD
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
34212Interchangeable
interchangeable cross-reference
interchangeable
0600Interchangeable
interchangeable cross-reference
interchangeable
FF-B-187AInterchangeable
interchangeable cross-reference
interchangeable
BT478Interchangeable
interchangeable cross-reference
interchangeable
478Interchangeable
interchangeable cross-reference
interchangeable
905531Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-319 2 1/2IN?
B-319 2 1/2IN is a B-319 2 1/2IN.
What parts can replace B-319 2 1/2IN?
There are 30 known substitutes for B-319 2 1/2IN: 34212, 0600, FF-B-187A and 27 more. Substitute compatibility should be verified for your specific system.
Is B-319 2 1/2IN still available?
B-319 2 1/2IN 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