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Technical Data Sheet
PartsTable / COMPONENT / 343-521-068PC15
343-521-068PC15 ✓ 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

The 343-521-068PC15 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-850-5345, 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
343-521-068PC15
NSN: 5330-00-850-5345
FSC: 5330
CAGE: 81220 — NATIONAL STEEL AND SHIPBUILDING COMPANY (USA)
SPECIFICATIONS
Part Number343-521-068PC15
NSN5330-00-850-5345
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 343-521-068PC15 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
4010-1Interchangeable
interchangeable cross-reference
interchangeable
42600Interchangeable
interchangeable cross-reference
interchangeable
C-42600Interchangeable
interchangeable cross-reference
interchangeable
X39-551Interchangeable
interchangeable cross-reference
interchangeable
9-049-100895Interchangeable
interchangeable cross-reference
interchangeable
72487Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 343-521-068PC15?
343-521-068PC15 is a 343-521-068PC15.
What parts can replace 343-521-068PC15?
There are 15 known substitutes for 343-521-068PC15: 4010-1, 42600, C-42600 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 343-521-068PC15?
343-521-068PC15 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-850-5345. 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