PartsTable
Technical Data Sheet
SPN37543 ✓ 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 GASKET 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 5330-01-268-2618, 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
SPN37543
NSN: 5330-01-268-2618
FSC: 5330
CAGE: 22527 — FISHER SCIENTIFIC COMPANY L.L.C. (USA)
SPECIFICATIONS
Part NumberSPN37543
NSN5330-01-268-2618
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SPN37543 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 9
3754-3Interchangeable
interchangeable cross-reference
interchangeable
5305PL0636444Interchangeable
interchangeable cross-reference
interchangeable
W1006-11-4Interchangeable
interchangeable cross-reference
interchangeable
PK365Interchangeable
interchangeable cross-reference
interchangeable
037543Interchangeable
interchangeable cross-reference
interchangeable
A53640PC15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SPN37543?
SPN37543 is a GASKET.
What parts can replace SPN37543?
There are 9 known substitutes for SPN37543: 3754-3, 5305PL0636444, W1006-11-4 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SPN37543?
SPN37543 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-268-2618. This indicates validated use in U.S. government and defense supply chains.
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