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PartsTable / COMPONENT / 643334
643334 ✓ 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 part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2815-00-288-4869, 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
643334
NSN: 2815-00-288-4869
FSC: 2815
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (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
NSN2815-00-288-4869
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,VALVE SPRING RETAINER TITLE COMPONENT PN 643334 MFR LOCK,VALVE SPRING RETA
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
R1-51Interchangeable
interchangeable cross-reference
interchangeable
N400-712-032Interchangeable
interchangeable cross-reference
interchangeable
RCR32G510JSInterchangeable
interchangeable cross-reference
interchangeable
2HB37Interchangeable
interchangeable cross-reference
interchangeable
5HB37Interchangeable
interchangeable cross-reference
interchangeable
838-029Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 643334?
643334 is a LOCK,VALVE SPRING RETAINER.
What parts can replace 643334?
There are 29 known substitutes for 643334: R1-51, N400-712-032, RCR32G510JS and 26 more. Substitute compatibility should be verified for your specific system.
Is 643334 still available?
643334 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