PartsTable
Technical Data Sheet
451487 ✓ 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

ROLLER,GOVERNOR WEIGHT,STEAM TUR. Key specifications include material: COPPER ALLOY BODY, bonnet_type: INSIDE SCREW, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: VALVE SEAT HELIUM LEAK TESTED, style_designator: STRAIGHT THRU. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-220-3968, 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
451487
NSN: 4820-00-220-3968
FSC: 4820
CAGE: 31949 — BROOKS AUTOMATION, INC. DIV CTI CRYOGENICS (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
bonnet_typeINSIDE SCREW
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresVALVE SEAT HELIUM LEAK TESTED
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
operating_pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
nominal_thread_size0.125 INCHES ALL ENDS IN
maximum_operating_temp70.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodMANUAL
NSN4820-00-220-3968
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 451487 · 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
MATERIAL: COPPER ALLOY BODY
BONNET TYPE: INSIDE SCREW
FLOW CONTROL DEVICE: DISK
MAXIMUM OPERATING TEMP: 70.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
BONNET ATTACHMENT METHOD: BOLTED
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
BONNET TYPEINSIDE SCREW
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY SEAT
MAXIMUM OPERATING TEMP70.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
MATERIALSTEEL COMP 303 FLOW CONTROL DEVICE
BONNET ATTACHMENT METHODBOLTED
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
A431PCN709Interchangeable
interchangeable cross-reference
interchangeable
BK709Interchangeable
interchangeable cross-reference
interchangeable
A431Interchangeable
interchangeable cross-reference
interchangeable
13623Interchangeable
interchangeable cross-reference
interchangeable
509015Interchangeable
interchangeable cross-reference
interchangeable
4171M2BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 451487?
451487 is a ROLLER,GOVERNOR WEIGHT,STEAM TUR.
What parts can replace 451487?
There are 9 known substitutes for 451487: A431PCN709, BK709, A431 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 451487?
451487 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-220-3968. This indicates validated use in U.S. government and defense supply chains.
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