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149/.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 149/.50 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-418-6571, 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
149/.50
NSN: 4820-01-418-6571
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number149/.50
NSN4820-01-418-6571
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 149/.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
•
BONNET ATTACHMENT METHOD: UNION
•
MATERIAL: COPPER ALLOY 836 BODY
•
BONNET TYPE: INSIDE SCREW
•
VALVE OPERATION METHOD: MANUAL
•
VALVE SIZE: 0.250 INCHES IN
•
CONNECTION TYPE: SOLDER, TUBE
TECHNICAL CHARACTERISTICS (FLIS)
BONNET ATTACHMENT METHODUNION
MATERIALCOPPER ALLOY 836 BODY
BONNET TYPEINSIDE SCREW
VALVE OPERATION METHODMANUAL
MATERIALCOPPER ALLOY 836 DISK
MATERIALCOPPER ALLOY 836 STEM
VALVE SIZE0.250 INCHES IN
CONNECTION TYPESOLDER, TUBE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES IN
OPERATING PRESSURE AND TYPE125.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 200.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
2550-1-2-15Interchangeable
interchangeable cross-reference
interchangeable
A22612Interchangeable
interchangeable cross-reference
interchangeable
149-1/2INInterchangeable
interchangeable cross-reference
interchangeable
08108-300-PAR56-5MFLInterchangeable
interchangeable cross-reference
interchangeable
300-PAR56-4MFLInterchangeable
interchangeable cross-reference
interchangeable
14950Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 149/.50?
149/.50 is a 149/.50.
What parts can replace 149/.50?
There are 11 known substitutes for 149/.50: 2550-1-2-15, A22612, 149-1/2IN and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 149/.50?
149/.50 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-418-6571. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026