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Technical Data Sheet
PartsTable / COMPONENT / 503NX001
503NX001 ✓ 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 CUSHION,SEAT BACK,VEHICULAR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, valve_size: 3.000 INCHES IN, flange_shape: ROUND ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: NHA VALVE SWG CHK, style_designator: STRAIGHT THRU FLANGED ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-463-4108, 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
503NX001
NSN: 4820-01-463-4108
FSC: 4820
CAGE: 61447 — VAL-MATIC VALVE AND MANUFACTURING CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
valve_size3.000 INCHES IN
flange_shapeROUND ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresNHA VALVE SWG CHK
style_designatorSTRAIGHT THRU FLANGED ENDS
mounting_positionHORIZONTAL
nominal_thickness0.500 INCHES ALL ENDS IN
flange_face_designPLAIN ALL ENDS
face_to_face_distance9.000 INCHES IN
end_item_identificationW/S CODE NIMITZ CLASS CVN
nominal_outside_diameter6.625 INCHES ALL ENDS IN
NSN4820-01-463-4108
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 503NX001 · 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
•
FACE TO FACE DISTANCE: 9.000 INCHES IN
•
MATERIAL: COPPER ALLOY BODY
•
NOMINAL OUTSIDE DIAMETER: 6.625 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
FLANGE SHAPE: ROUND ALL ENDS
•
NOMINAL THICKNESS: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
FACE TO FACE DISTANCE9.000 INCHES IN
MATERIALCOPPER ALLOY BODY
NOMINAL OUTSIDE DIAMETER6.625 INCHES ALL ENDS IN
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
SPECIAL FEATURESNHA VALVE SWG CHK
FLANGE SHAPEROUND ALL ENDS
NOMINAL THICKNESS0.500 INCHES ALL ENDS IN
END ITEM IDENTIFICATIONW/S CODE NIMITZ CLASS CVN
CONNECTION TYPEFLANGE ALL ENDS
VALVE SIZE3.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
1-233156Interchangeable
interchangeable cross-reference
interchangeable
1645425Interchangeable
interchangeable cross-reference
interchangeable
7-798-000032Interchangeable
interchangeable cross-reference
interchangeable
902374-42Interchangeable
interchangeable cross-reference
interchangeable
502-0005Interchangeable
interchangeable cross-reference
interchangeable
3BF.1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 503NX001?
503NX001 is a CUSHION,SEAT BACK,VEHICULAR.
What parts can replace 503NX001?
There are 10 known substitutes for 503NX001: 1-233156, 1645425, 7-798-000032 and 7 more. Substitute compatibility should be verified for your specific system.
Is 503NX001 still available?
503NX001 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026