PartsTable
Technical Data Sheet
30 N581 25TO60PSI ✓ 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

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, material: RUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE, body_style: STRAIGHT THRU, regulation_type: AUTOMATIC SINGLE STAGE, flow_control_device: DISK, valve_loading_method: SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-203-5448, 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
30 N581 25TO60PSI
NSN: 4820-01-203-5448
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
filterNOT INCLUDED
materialRUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE
body_styleSTRAIGHT THRU
regulation_typeAUTOMATIC SINGLE STAGE
flow_control_deviceDISK
valve_loading_methodSPRING
face_to_face_distance11.750 INCHES NOMINAL IN
end_connection_quantity2
first_end_connection_typePLAIN FACE FLANGE
first_end_flange_thickness0.250 INCHES NOMINAL IN
first_end_style_designatorPLAIN
first_end_bolt_hole_diameter0.688 INCHES NOMINAL IN
NSN4820-01-203-5448
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 30 N581 25TO60PSI · 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
FILTER: NOT INCLUDED
FIRST END STYLE DESIGNATOR: PLAIN
MATERIAL: RUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE
BODY STYLE: STRAIGHT THRU
FIRST END FLANGE OUTSIDE DIAMETER: 6.125 INCHES NOMINAL IN
FACE TO FACE DISTANCE: 11.750 INCHES NOMINAL IN
FIRST END FLANGE SHAPE STYLE: ROUND W/ BOLT HOLES
TECHNICAL CHARACTERISTICS (FLIS)
FILTERNOT INCLUDED
FIRST END STYLE DESIGNATORPLAIN
MATERIALRUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE
BODY STYLESTRAIGHT THRU
FIRST END FLANGE OUTSIDE DIAMETER6.125 INCHES NOMINAL IN
MATERIALNICKEL ALLOY STEM
FACE TO FACE DISTANCE11.750 INCHES NOMINAL IN
FIRST END FLANGE SHAPE STYLEROUND W/ BOLT HOLES
FIRST END BOLT CIRCLE DIAMETER5.000 INCHES NOMINAL IN
FIRST END BOLT HOLE QUANTITY6
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
203047Interchangeable
interchangeable cross-reference
interchangeable
N58-1Interchangeable
interchangeable cross-reference
interchangeable
30 N581 25TO60PInterchangeable
Same NIIN cross-reference
interchangeable
30 N581 25T60PSInterchangeable
Same NIIN cross-reference
interchangeable
1146F208T-.275INInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30 N581 25TO60PSI?
30 N581 25TO60PSI is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 30 N581 25TO60PSI?
There are 5 known substitutes for 30 N581 25TO60PSI: 203047, N58-1, 30 N581 25TO60P and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30 N581 25TO60PSI?
30 N581 25TO60PSI is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-203-5448. This indicates validated use in U.S. government and defense supply chains.
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