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Technical Data Sheet
PartsTable / COMPONENT / 45683 AND 45686 AND 45687
45683 AND 45686 AND 45687 ✓ 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 SEAL,PLAIN 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 5330-01-272-6445, 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
45683 AND 45686 AND 45687
NSN: 5330-01-272-6445
FSC: 5330
CAGE: 57783 — CAT PUMPS CORP (USA)
SPECIFICATIONS
Part Number45683 AND 45686 AND 45687
NSN5330-01-272-6445
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 45683 AND 45686 AND 45687 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 8
TW64544Interchangeable
interchangeable cross-reference
interchangeable
ALF573Interchangeable
interchangeable cross-reference
interchangeable
SM-A-858457Interchangeable
interchangeable cross-reference
interchangeable
52.2821.220.15LVInterchangeable
interchangeable cross-reference
interchangeable
4324-2Interchangeable
interchangeable cross-reference
interchangeable
D317FSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 45683 AND 45686 AND 45687?
45683 AND 45686 AND 45687 is a SEAL,PLAIN.
What parts can replace 45683 AND 45686 AND 45687?
There are 8 known substitutes for 45683 AND 45686 AND 45687: TW64544, ALF573, SM-A-858457 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 45683 AND 45686 AND 45687?
45683 AND 45686 AND 45687 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-272-6445. 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