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PartsTable / COMPONENT / S645-3
S645-3 ✓ 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 RING,WIPER is a the manufacturer industrial component. Key specifications include color: BLACK, width: 0.625 INCHES NOMINAL IN, skirt_style: FLARED, skirt_design: NONDETACHABLE, overall_depth: 0.375 INCHES NOMINAL IN, inside_diameter: 0.250 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 4320-00-225-1736, 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
S645-3
NSN: 4320-00-225-1736
FSC: 4320
CAGE: 64161 — WEAVER DIV OF DURA CORP (USA)
SPECIFICATIONS
colorBLACK
width0.625 INCHES NOMINAL IN
skirt_styleFLARED
skirt_designNONDETACHABLE
overall_depth0.375 INCHES NOMINAL IN
inside_diameter0.250 INCHES NOMINAL IN
screw_drive_typeSLOT
style_designatorFLUTED FOILS
attachment_methodSETSCREWS
overall_thickness0.438 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES SCREW HOLE IN
fluted_foil_quantity7
NSN4320-00-225-1736
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WIPER TITLE COMPONENT PN S645-3 MFR RING,WIPER
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL+ 12.500 IN. MIN 12.562 IN. MAX. O/A DIA; 10.844 IN. ID; 11.562 IN. RECESSED DIA; 0.562 IN. RECESSED DEPTH IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL+ 12.500 IN. MIN 12.562 IN. MAX. O/A DIA; 10.844 IN. ID; 11.562 IN. RECESSED DIA; 0.562 IN. RECESSED DEPTH IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
1751806Interchangeable
interchangeable cross-reference
interchangeable
S645-3Interchangeable
interchangeable cross-reference
interchangeable
S676-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S645-3?
S645-3 is a RING,WIPER.
What parts can replace S645-3?
There are 3 known substitutes for S645-3: 1751806, S645-3, S676-3. Substitute compatibility should be verified for your specific system.
What is the NSN for S645-3?
S645-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-225-1736. 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