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PartsTable / COMPONENT / 330576 ASSY N
330576 ASSY N ✓ 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,CHECK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 FLOW CONTROL DEVICE, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, style_designator: STRAIGHT THRU, mounting_position: HORIZONTAL OR VERTICAL, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, flow_control_device: DISK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-305-9787, 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
330576 ASSY N
NSN: 4820-01-305-9787
FSC: 4820
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialSTEEL COMP 416 FLOW CONTROL DEVICE
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
style_designatorSTRAIGHT THRU
mounting_positionHORIZONTAL OR VERTICAL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
media_for_which_designedOIL, HYDRAULIC SINGLE RESPONSE
furnished_items_and_quantity2 NUT AND 2 TAILPIECE
nominal_pipe_size_accommodated1.000 INCHES ALL ENDS IN
NSN4820-01-305-9787
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 330576 ASSY N · 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 NUT AND 2 TAILPIECE
•
MEDIA FOR WHICH DESIGNED: OIL, HYDRAULIC SINGLE RESPONSE
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: STEEL COMP 416 FLOW CONTROL DEVICE
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY2 NUT AND 2 TAILPIECE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL COMP 416 FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING BODY
MOUNTING POSITIONHORIZONTAL OR VERTICAL
VALVE OPERATION METHODAUTOMATIC
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
00044Interchangeable
interchangeable cross-reference
interchangeable
55719Interchangeable
interchangeable cross-reference
interchangeable
55009Interchangeable
interchangeable cross-reference
interchangeable
18T12Interchangeable
interchangeable cross-reference
interchangeable
125-59-1Interchangeable
interchangeable cross-reference
interchangeable
L193Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 330576 ASSY N?
330576 ASSY N is a VALVE,CHECK.
What parts can replace 330576 ASSY N?
There are 12 known substitutes for 330576 ASSY N: 00044, 55719, 55009 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 330576 ASSY N?
330576 ASSY N is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-305-9787. 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