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PartsTable / COMPONENT / H20-6
H20-6 ✓ 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

The LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include diameter: 0.312 INCHES NOMINAL IN, material: STEEL, nut_style: DOUBLE HEXAGON, cut_length: 0.469 INCHES NOMINAL IN, shank_type: ANY ACCEPTABLE, design_form: ANY ACCEPTABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3895-00-160-5721, 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
H20-6
NSN: 3895-00-160-5721
FSC: 3895
CAGE: 80195 — ED ETNYRE & CO (USA)
SPECIFICATIONS
diameter0.312 INCHES NOMINAL IN
materialSTEEL
nut_styleDOUBLE HEXAGON
cut_length0.469 INCHES NOMINAL IN
shank_typeANY ACCEPTABLE
design_formANY ACCEPTABLE
lubricationDRY FILM LUBRICANT
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
flute_designSTRAIGHT
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
flute_quantity2
NSN3895-00-160-5721
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,VALVE SPRING RETAINER TITLE COMPONENT PN H20-6 MFR LOCK,VALVE SPRING RETA
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION3990-01-444-6174 BITUM DISTRIBUTOR
PART NAME ASSIGNED BY CONTROLLING AGENCYCOMBUSTION TUBE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
643334Interchangeable
interchangeable cross-reference
interchangeable
PC838029Interchangeable
interchangeable cross-reference
interchangeable
206880Interchangeable
interchangeable cross-reference
interchangeable
57585-624Interchangeable
interchangeable cross-reference
interchangeable
943972-3Interchangeable
interchangeable cross-reference
interchangeable
6500041Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H20-6?
H20-6 is a LOCK,VALVE SPRING RETAINER.
What parts can replace H20-6?
There are 11 known substitutes for H20-6: 643334, PC838029, 206880 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H20-6?
H20-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3895-00-160-5721. 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