PartsTable
Technical Data Sheet
1303-03-C FN 18 ✓ 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,BALL is a the manufacturer industrial component. Key specifications include material: STEEL STEM, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET (TUBE) ALL ENDS, style_designator: STRAIGHT THRU, operating_pressure: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 300.0 FAHRENHEIT SINGLE RESPONSE DEGF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-516-6152, 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
1303-03-C FN 18
NSN: 4820-01-516-6152
FSC: 4820
CAGE: 38450 — ENGINEERED COIL COMPANY DBA ENGINEERED COIL CO DIV DRS MARLO COIL (USA)
SPECIFICATIONS
materialSTEEL STEM
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET (TUBE) ALL ENDS
style_designatorSTRAIGHT THRU
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp300.0 FAHRENHEIT SINGLE RESPONSE DEGF
minimum_operating_temp-40.0 FAHRENHEIT DEGF
valve_operation_methodMANUAL
end_item_identificationPIPING ASSEMBLY 4.6 TON
nominal_pipe_size_accommodated0.375 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencyDIRECT OPERATED, NON-DIRECTIONAL FLOW BALL VALVE
NSN4820-01-516-6152
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 1303-03-C FN 18 · 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
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: STEEL STEM
VALVE OPERATION METHOD: MANUAL
NOMINAL PIPE SIZE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
CONNECTION STYLE: SOCKET (TUBE) ALL ENDS
STYLE DESIGNATOR: STRAIGHT THRU
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
PART NAME ASSIGNED BY CONTROLLING AGENCYDIRECT OPERATED, NON-DIRECTIONAL FLOW BALL VALVE
MATERIALSTEEL STEM
VALVE OPERATION METHODMANUAL
END ITEM IDENTIFICATIONPIPING ASSEMBLY 4.6 TON
NOMINAL PIPE SIZE ACCOMMODATED0.375 INCHES ALL ENDS IN
CONNECTION STYLESOCKET (TUBE) ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
MINIMUM OPERATING TEMP-40.0 FAHRENHEIT DEGF
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
90-4203Interchangeable
interchangeable cross-reference
interchangeable
2003Interchangeable
interchangeable cross-reference
interchangeable
18-030-032Interchangeable
Same NIIN cross-reference
interchangeable
1303-03-CInterchangeable
Same NIIN cross-reference
interchangeable
937203Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1303-03-C FN 18?
1303-03-C FN 18 is a VALVE,BALL.
What parts can replace 1303-03-C FN 18?
There are 5 known substitutes for 1303-03-C FN 18: 90-4203, 2003, 18-030-032 and 2 more. Substitute compatibility should be verified for your specific system.
Is 1303-03-C FN 18 still available?
1303-03-C FN 18 is currently cancelled.
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