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Technical Data Sheet
PartsTable / COMPONENT / B-319 SZ 1 1/4 IN
B-319 SZ 1 1/4 IN ✓ 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 SZ 1 1/4 IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-3097, 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 SZ 1 1/4 IN
NSN: 4820-00-287-3097
FSC: 4820
CAGE: 82666 — STOCKHAM VALVES AND FITTINGS INC (USA)
SPECIFICATIONS
Part NumberB-319 SZ 1 1/4 IN
NSN4820-00-287-3097
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B-319 SZ 1 1/4 IN · 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
•
FLOW CONTROL DEVICE: DISK
•
THREAD QUANTITY PER INCH: 11-1/2 FIRST END
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
•
MATERIAL: COPPER ALLOY 360 FLOW CONTROL DEVICE
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
THREAD QUANTITY PER INCH11-1/2 FIRST END
MOUNTING POSITIONHORIZONTAL OR VERTICAL
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALCOPPER ALLOY 360 FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MATERIALCOPPER ALLOY 836 BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
0600Interchangeable
interchangeable cross-reference
interchangeable
0001347Interchangeable
interchangeable cross-reference
interchangeable
35715615151Interchangeable
interchangeable cross-reference
interchangeable
2000102767Interchangeable
interchangeable cross-reference
interchangeable
PF-8050Interchangeable
interchangeable cross-reference
interchangeable
92AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-319 SZ 1 1/4 IN?
B-319 SZ 1 1/4 IN is a B-319 SZ 1 1/4 IN.
What parts can replace B-319 SZ 1 1/4 IN?
There are 29 known substitutes for B-319 SZ 1 1/4 IN: 0600, 0001347, 35715615151 and 26 more. Substitute compatibility should be verified for your specific system.
Is B-319 SZ 1 1/4 IN still available?
B-319 SZ 1 1/4 IN 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