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Technical Data Sheet
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7R ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include part_name_assigned_by_controlling_agency: CHUCK BUFFING POLIS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-205-7081, 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
7R
NSN: 5340-00-205-7081
FSC: 5340
CAGE: 35111 — CHAS. O. LARSON CO. DBA LARSON HARDWARE MANUFACTURING (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyCHUCK BUFFING POLIS
NSN5340-00-205-7081
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7R MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
STYLE DESIGNATOR: ROUND OFFSET BEND
•
NONMACHINE THREAD STYLE: WOOD SCREW (TYPE WD)
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORROUND OFFSET BEND
OVERALL LENGTH2.688 INCHES NOMINAL IN
NONMACHINE THREAD STYLEWOOD SCREW (TYPE WD)
NONMACHINE NOMINAL THREAD DIAMETER0.190 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
7RInterchangeable
interchangeable cross-reference
interchangeable
B107.24Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-00649 TY1CL1STAInterchangeable
interchangeable cross-reference
interchangeable
S6700Interchangeable
interchangeable cross-reference
interchangeable
140100Interchangeable
interchangeable cross-reference
interchangeable
700-55600Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7R?
7R is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What parts can replace 7R?
There are 11 known substitutes for 7R: 7R, B107.24, GGG-W-00649 TY1CL1STA and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7R?
7R is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-205-7081. 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