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NMP622 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NMP622: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY STEM, flange_shape: ROUND WITH HOLES FIRST END, connection_type: FLANGE FIRST END, style_designator: ANGLE, bolt_hole_quantity: 4 FIRST END, flange_face_design: PLAIN FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-287-2616, 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
NMP622
NSN: 4820-00-287-2616
FSC: 4820 — Valves, Nonpowered
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialCOPPER ALLOY STEM
flange_shapeROUND WITH HOLES FIRST END
connection_typeFLANGE FIRST END
style_designatorANGLE
bolt_hole_quantity4 FIRST END
flange_face_designPLAIN FIRST END
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_devicePOPPET
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodAUTOMATIC
media_for_which_designedWATER, FRESH SINGLE RESPONSE
NSN4820-00-287-2616
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NMP622 · 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
•
FLOW CONTROL DEVICE: POPPET
•
FLANGE SHAPE: ROUND WITH HOLES FIRST END
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.500 INCHES SECOND END IN
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
BOLT CIRCLE NOMINAL DIAMETER: 3.875 INCHES FIRST END IN
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE SECOND END
•
STYLE DESIGNATOR: ANGLE
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
FLANGE SHAPEROUND WITH HOLES FIRST END
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES SECOND END IN
FLANGE FACE DESIGNPLAIN FIRST END
BOLT CIRCLE NOMINAL DIAMETER3.875 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
CONNECTION TYPEFLANGE FIRST END
STYLE DESIGNATORANGLE
BOLT HOLE NOMINAL DIAMETER0.625 INCHES FIRST END IN
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SUBSTITUTES & CROSS-REFERENCES 2
66645Reference document
Same NSN cross-reference
Reference document — Secondary reference
L2122CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NMP622?
NMP622 is a VALVE,SAFETY RELIEF.
What parts can replace NMP622?
There are 2 known substitutes for NMP622: 66645, L2122C. Substitute compatibility should be verified for your specific system.
What is the NSN for NMP622?
NMP622 is cataloged in the U.S. Government catalog under NSN 4820-00-287-2616. This indicates validated use in U.S. government and defense supply chains.
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