PartsTable
Technical Data Sheet
803-1385541-044 ✓ 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,STOP-CHECK is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY FLOW CONTROL DEVICE, valve_size: 4.000 INCHES IN, bonnet_type: OUTSIDE SCREW-YOKE, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: VALVE SIZE 4.000 IN. IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-186-3568, 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
803-1385541-044
NSN: 4820-00-186-3568
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY FLOW CONTROL DEVICE
valve_size4.000 INCHES IN
bonnet_typeOUTSIDE SCREW-YOKE
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresVALVE SIZE 4.000 IN. IN
style_designatorANGLE FLANGED ENDS
mounting_positionVERTICAL
nominal_thickness0.500 INCHES ALL ENDS IN
bolt_hole_quantity8 ALL ENDS
flange_face_designPLAIN ALL ENDS
operating_pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4820-00-186-3568
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 803-1385541-044 · 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
BOLT CIRCLE NOMINAL DIAMETER: 6.562 INCHES ALL ENDS IN
SECOND CONNECTION FACE TO CENTERLINE DISTANCE: 6.000 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE BODY
RENEWABLE SEAT RING TYPE: THREADED
VALVE OPERATION METHOD: MANUAL
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
VALVE SIZE: 4.000 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE NOMINAL DIAMETER6.562 INCHES ALL ENDS IN
SECOND CONNECTION FACE TO CENTERLINE DISTANCE6.000 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE BODY
RENEWABLE SEAT RING TYPETHREADED
VALVE OPERATION METHODMANUAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-894,CLASS B- CANCELED MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
FLANGE SHAPEROUND WITH HOLES ALL ENDS
VALVE SIZE4.000 INCHES IN
CONNECTION TYPEFLANGE ALL ENDS
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT SINGLE RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
803-1385541Interchangeable
interchangeable cross-reference
interchangeable
803-1385541F8INInterchangeable
interchangeable cross-reference
interchangeable
CS4820-0049Interchangeable
interchangeable cross-reference
interchangeable
S4824-1385541Interchangeable
interchangeable cross-reference
interchangeable
803-1385541-054AFInterchangeable
interchangeable cross-reference
interchangeable
1024C001J312Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-1385541-044?
803-1385541-044 is a VALVE,STOP-CHECK.
What parts can replace 803-1385541-044?
There are 13 known substitutes for 803-1385541-044: 803-1385541, 803-1385541F8IN, CS4820-0049 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-1385541-044?
803-1385541-044 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-186-3568. This indicates validated use in U.S. government and defense supply chains.
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