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PartsTable / COMPONENT / 503-S 43
503-S 43 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

DIAPHRAGM,ACTUATOR VALVE,SPECIAL. Key specifications include material: STEEL OVERALL, point_type: CONVENTIONAL, point_angle: 118.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 1.250 INCHES NOMINAL IN, overall_length: 2.250 INCHES NOMINAL 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 5133-00-189-9288, 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
503-S 43
NSN: 5133-00-189-9288
FSC: 5133
CAGE: 65400 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
point_typeCONVENTIONAL
point_angle118.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length1.250 INCHES NOMINAL IN
flute_quantity2
overall_length2.250 INCHES NOMINAL IN
shank_diameter0.089 INCHES NOMINAL IN
special_featuresJOBBERS LG; WIRE SIZE 43
cutting_end_styleGENERAL PURPOSE
nominal_cutting_diameter0.0890 INCHES IN
cutting_rotation_directionRIGHT-HAND
NSN5133-00-189-9288
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DIAPHRAGM,ACTUATOR VALVE,SPECIAL TITLE COMPONENT PN 503-S 43 MFR DIAPHRAGM,ACTUATOR VAL
KEY FEATURES
•
POINT TYPE: CONVENTIONAL
•
POINT ANGLE: 118.0 DEGREES NOMINAL
•
NOMINAL CUTTING DIAMETER: 0.0890 INCHES IN
•
SPECIFICATION/STANDARD DATA: 05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
MATERIAL: STEEL OVERALL
•
CUTTING END STYLE: GENERAL PURPOSE
TECHNICAL CHARACTERISTICS (FLIS)
POINT TYPECONVENTIONAL
OVERALL LENGTH2.250 INCHES NOMINAL IN
SPECIAL FEATURESJOBBERS LG; WIRE SIZE 43
POINT ANGLE118.0 DEGREES NOMINAL
NOMINAL CUTTING DIAMETER0.0890 INCHES IN
SPECIFICATION/STANDARD DATA05047-ASME B94.11M PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIALSTEEL OVERALL
CUTTING END STYLEGENERAL PURPOSE
FLUTE QUANTITY2
SHANK STYLESTRAIGHT ROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
18043Interchangeable
interchangeable cross-reference
interchangeable
44-113Interchangeable
interchangeable cross-reference
interchangeable
2173549Interchangeable
interchangeable cross-reference
interchangeable
A1804-3Interchangeable
interchangeable cross-reference
interchangeable
RF61A238Interchangeable
interchangeable cross-reference
interchangeable
61006Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 503-S 43?
503-S 43 is a DIAPHRAGM,ACTUATOR VALVE,SPECIAL.
What parts can replace 503-S 43?
There are 25 known substitutes for 503-S 43: 18043, 44-113, 2173549 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 503-S 43?
503-S 43 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5133-00-189-9288. 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