PartsTable
Technical Data Sheet
20285R51M ✓ 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 VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, bonnet_type: INSIDE SPRING, flange_shape: ROUND FIRST END, connection_type: FLANGE FIRST END, connection_style: STREAMLINED WITH ONE BRAZING RING (TUBE) SECOND END, style_designator: ANGLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-134-2803, 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
20285R51M
NSN: 4820-01-134-2803
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
bonnet_typeINSIDE SPRING
flange_shapeROUND FIRST END
connection_typeFLANGE FIRST END
connection_styleSTREAMLINED WITH ONE BRAZING RING (TUBE) SECOND END
style_designatorANGLE
nominal_thickness0.344 INCHES FIRST END IN
flange_face_designPLAIN FIRST END
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-01-134-2803
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20285R51M · 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
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
FLANGE FACE DESIGN: PLAIN FIRST END
NOMINAL OUTSIDE DIAMETER: 3.875 INCHES FIRST END IN
STYLE DESIGNATOR: ANGLE
MATERIAL: COPPER ALLOY BODY
CONNECTION TYPE: FLANGE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
FLANGE FACE DESIGNPLAIN FIRST END
NOMINAL OUTSIDE DIAMETER3.875 INCHES FIRST END IN
STYLE DESIGNATORANGLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY BODY
CONNECTION TYPEFLANGE FIRST END
BONNET ATTACHMENT METHODBOLTED
MATERIALNICKEL ALLOY SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
3590113Interchangeable
interchangeable cross-reference
interchangeable
756-2866Interchangeable
interchangeable cross-reference
interchangeable
8P72Interchangeable
interchangeable cross-reference
interchangeable
20285Interchangeable
interchangeable cross-reference
interchangeable
A07521.004.132Interchangeable
interchangeable cross-reference
interchangeable
A7512.004.132Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 20285R51M?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 20285R51M?
20285R51M is a VALVE,SAFETY RELIEF.
What parts can replace 20285R51M?
There are 20 known substitutes for 20285R51M: 3590113, 756-2866, 8P72 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20285R51M?
20285R51M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-134-2803. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 20285R51M