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A31549RH — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A31549RH: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include flange_shape: ROUND WITH HOLES SECOND END, connection_type: FLANGE FIRST END, special_features: W/LIFTING LEVER, style_designator: ANGLE, bolt_hole_quantity: 8 FIRST END, flange_face_design: PLAIN SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-287-4128, 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
A31549RH
NSN: 4820-00-287-4128
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
flange_shapeROUND WITH HOLES SECOND END
connection_typeFLANGE FIRST END
special_featuresW/LIFTING LEVER
style_designatorANGLE
bolt_hole_quantity8 FIRST END
flange_face_designPLAIN SECOND END
operating_pressure524.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
special_test_featuresEQUIPPED W/RH DRAIN
maximum_operating_temp425.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_outside_diameter9.250 INCHES SECOND END IN
opening_pressure_setting1340.0 POUNDS PER SQUARE INCH LBS
NSN4820-00-287-4128
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A31549RH · 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
•
FLANGE SHAPE: ROUND WITH HOLES FIRST END
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
SPECIAL TEST FEATURES: EQUIPPED W/RH DRAIN
•
BOLT CIRCLE NOMINAL DIAMETER: 7.688 INCHES SECOND END IN
•
CONNECTION TYPE: FLANGE SECOND END
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES FIRST END
FLANGE SHAPEROUND WITH HOLES SECOND END
FLANGE FACE DESIGNPLAIN FIRST END
FLANGE FACE DESIGNPLAIN SECOND END
SPECIAL TEST FEATURESEQUIPPED W/RH DRAIN
BOLT CIRCLE NOMINAL DIAMETER7.688 INCHES SECOND END IN
BOLT CIRCLE NOMINAL DIAMETER7.500 INCHES FIRST END IN
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPEFLANGE FIRST END
STYLE DESIGNATORANGLE
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A31549RH?
A31549RH is a VALVE,SAFETY RELIEF.
What is the NSN for A31549RH?
A31549RH is cataloged in the U.S. Government catalog under NSN 4820-00-287-4128. This indicates validated use in U.S. government and defense supply chains.
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