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Technical Data Sheet
500-125LB 1NPT ✓ 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 CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 836 BODY, stem_type: RISING, valve_size: 1.000 INCHES IN, bonnet_type: INSIDE SCREW, pressure_class: ERR-060, connection_type: THREADED INTERNAL PIPE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-248-7149, 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
500-125LB 1NPT
NSN: 4820-01-248-7149
FSC: 4820
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 836 BODY
stem_typeRISING
valve_size1.000 INCHES IN
bonnet_typeINSIDE SCREW
pressure_classERR-060
connection_typeTHREADED INTERNAL PIPE
features_providedBONNET PACKING
nominal_thread_size1.000 INCHES IN
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
thread_series_designatorNPT
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
NSN4820-01-248-7149
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 500-125LB 1NPT · 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
VALVE OPERATION METHOD: MANUAL
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY
VALVE SIZE: 1.000 INCHES IN
STEM TYPE: RISING
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
THREAD SERIES DESIGNATOR: NPT
OPERATING PRESSURE AND TYPE: 125.0 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
BONNET TYPE: INSIDE SCREW
TECHNICAL CHARACTERISTICS (FLIS)
VALVE OPERATION METHODMANUAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY
VALVE SIZE1.000 INCHES IN
STEM TYPERISING
INLET RELATIONSHIP WITH OUTLETIDENTICAL
THREAD SERIES DESIGNATORNPT
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
BONNET TYPEINSIDE SCREW
PRESSURE CLASSERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE DISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
77603Interchangeable
interchangeable cross-reference
interchangeable
54252Interchangeable
interchangeable cross-reference
interchangeable
686-5Interchangeable
interchangeable cross-reference
interchangeable
IB610Interchangeable
interchangeable cross-reference
interchangeable
432 3-4Interchangeable
interchangeable cross-reference
interchangeable
901U3-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500-125LB 1NPT?
500-125LB 1NPT is a CIRCUIT CARD ASSEMBLY.
What parts can replace 500-125LB 1NPT?
There are 20 known substitutes for 500-125LB 1NPT: 77603, 54252, 686-5 and 17 more. Substitute compatibility should be verified for your specific system.
Is 500-125LB 1NPT still available?
500-125LB 1NPT is currently cancelled.
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