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Technical Data Sheet
PartsTable / COMPONENT / 20045C91M
20045C91M ✓ 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 SUPPRESSOR,PARASITIC is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY FLOW CONTROL DEVICE, valve_size: 3.000 INCHES IN, bonnet_type: INSIDE SPRING, flange_shape: ROUND ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: CAST BODY WITH INTEGRAL FLANGES IAW 20042 -150 LBS, DRAIN IAW MS16142 1/2 TUBE O.D.; VEN IAW MS16142 1/2 TUBE O.D. LBS.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-530-7072, 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
20045C91M
NSN: 4820-01-530-7072
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY FLOW CONTROL DEVICE
valve_size3.000 INCHES IN
bonnet_typeINSIDE SPRING
flange_shapeROUND ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresCAST BODY WITH INTEGRAL FLANGES IAW 20042 -150 LBS, DRAIN IAW MS16142 1/2 TUBE O.D.; VEN IAW MS16142 1/2 TUBE O.D. LBS
style_designatorANGLE FLANGED ENDS
features_providedMANUAL OVERRIDE
flange_face_designPLAIN ALL ENDS
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
NSN4820-01-530-7072
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20045C91M · 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
•
FURNISHED ITEMS AND QUANTITY: 2 GASKET
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MATERIAL: NICKEL ALLOY FLOW CONTROL DEVICE
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SECOND CONNECTION FACE TO CENTERLINE DISTANCE: 6.000 INCHES IN
•
SPECIFICATION/STANDARD DATA: 81349 - MIL-V-20065 GOVERNMENT SPECIFICATION AND 81349 - MIL-F-20042 GOVERNMENT SPECIFICATION
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCY3" RELIEF VALVE, TYPE 1792
FURNISHED ITEMS AND QUANTITY2 GASKET
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SINGLE RESPONSE DEGF
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SECOND CONNECTION FACE TO CENTERLINE DISTANCE6.000 INCHES IN
SPECIAL FEATURESCAST BODY WITH INTEGRAL FLANGES IAW 20042 -150 LBS, DRAIN IAW MS16142 1/2 TUBE O.D.; VEN IAW MS16142 1/2 TUBE O.D. LBS
SPECIFICATION/STANDARD DATA81349 - MIL-V-20065 GOVERNMENT SPECIFICATION AND 81349 - MIL-F-20042 GOVERNMENT SPECIFICATION
FIRST CONNECTION FACE TO CENTERLINE DISTANCE5.000 INCHES IN
NONDEFINITIVE SPEC/STD DATAA-2 TYPE AND C CLASS AND 150 CLASS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
20-045Interchangeable
interchangeable cross-reference
interchangeable
942-0020-045Interchangeable
interchangeable cross-reference
interchangeable
2410 45/64Interchangeable
interchangeable cross-reference
interchangeable
110 45/64Interchangeable
interchangeable cross-reference
interchangeable
C12216Interchangeable
interchangeable cross-reference
interchangeable
20048Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20045C91M?
20045C91M is a SUPPRESSOR,PARASITIC.
What parts can replace 20045C91M?
There are 17 known substitutes for 20045C91M: 20-045, 942-0020-045, 2410 45/64 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20045C91M?
20045C91M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-530-7072. 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