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PartsTable / COMPONENT / H18-536
H18-536 ✓ 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
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PRODUCT OVERVIEW

The RING,PISTON is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: FLAT COUNTERSUNK, ring_style: CONCENTRIC, grip_length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, joint_style: VERTICAL JOINT, thread_class: 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-569-4109, 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
H18-536
NSN: 4310-00-569-4109
FSC: 4310
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleFLAT COUNTERSUNK
ring_styleCONCENTRIC
grip_length0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
joint_styleVERTICAL JOINT
thread_class3A A
grip_diameter0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
head_diameter0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN
overall_width0.1240 INCHES NOMINAL IN
thread_length0.338 INCHES MINIMUM AND 0.388 INCHES MAXIMUM IN
fastener_length0.723 INCHES MINIMUM AND 0.753 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM OVERALL
NSN4310-00-569-4109
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN H18-536 MFR RING,PISTON
KEY FEATURES
•
STANDARD BORE DIAMETER: 2.500 INCHES IN
•
MATERIAL: IRON OVERALL
•
RING STYLE: CONCENTRIC
•
RADIAL WALL THICKNESS: 0.1070 INCHES MINIMUM AND 0.1170 INCHES MAXIMUM IN
•
JOINT STYLE: VERTICAL JOINT
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD BORE DIAMETER2.500 INCHES IN
MATERIALIRON OVERALL
OVERALL WIDTH0.1240 INCHES NOMINAL IN
RING STYLECONCENTRIC
RADIAL WALL THICKNESS0.1070 INCHES MINIMUM AND 0.1170 INCHES MAXIMUM IN
JOINT STYLEVERTICAL JOINT
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A282751Interchangeable
interchangeable cross-reference
interchangeable
MFC1470Interchangeable
interchangeable cross-reference
interchangeable
FC1470Interchangeable
interchangeable cross-reference
interchangeable
8710699Interchangeable
interchangeable cross-reference
interchangeable
F1470Interchangeable
interchangeable cross-reference
interchangeable
AIC985-3-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H18-536?
H18-536 is a RING,PISTON.
What parts can replace H18-536?
There are 11 known substitutes for H18-536: A282751, MFC1470, FC1470 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H18-536?
H18-536 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-00-569-4109. 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