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Technical Data Sheet
PartsTable / COMPONENT / 125T-1 1/2IN
125T-1 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 125T-1 1/2IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-227-0162, 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
125T-1 1/2IN
NSN: 4820-00-227-0162
FSC: 4820
CAGE: 14652 — UNITED BRASS WORKS, INC. DBA UNITED BRASS WORKS (USA)
SPECIFICATIONS
Part Number125T-1 1/2IN
NSN4820-00-227-0162
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 125T-1 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
•
BONNET TYPE: INSIDE SCREW
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SECOND RESPONSE DEGF
•
BONNET ATTACHMENT METHOD: THREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMCUB000 ASSN STD SINGLE MATERIAL RESPONSE BODY
•
VALVE OPERATION METHOD: MANUAL
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
FEATURES PROVIDED: BONNET PACKING
TECHNICAL CHARACTERISTICS (FLIS)
BONNET TYPEINSIDE SCREW
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
BONNET ATTACHMENT METHODTHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONASTMCUB000 ASSN STD SINGLE MATERIAL RESPONSE BODY
VALVE OPERATION METHODMANUAL
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
FEATURES PROVIDEDBONNET PACKING
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A CLASS AND 1 END AND 1-1/2 SIZE
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
L18178Interchangeable
interchangeable cross-reference
interchangeable
045Interchangeable
interchangeable cross-reference
interchangeable
50181Interchangeable
interchangeable cross-reference
interchangeable
UG135A1Interchangeable
interchangeable cross-reference
interchangeable
50180Interchangeable
interchangeable cross-reference
interchangeable
038086Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 125T-1 1/2IN?
125T-1 1/2IN is a 125T-1 1/2IN.
What parts can replace 125T-1 1/2IN?
There are 27 known substitutes for 125T-1 1/2IN: L18178, 045, 50181 and 24 more. Substitute compatibility should be verified for your specific system.
Is 125T-1 1/2IN still available?
125T-1 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