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Technical Data Sheet
PartsTable / COMPONENT / 53X4787
53X4787 ✓ 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,ENCASED 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 5330-00-706-4529, 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
53X4787
NSN: 5330-00-706-4529
FSC: 5330
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
Part Number53X4787
NSN5330-00-706-4529
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 53X4787 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 19
A8743Interchangeable
interchangeable cross-reference
interchangeable
SMD422742Interchangeable
interchangeable cross-reference
interchangeable
7374Interchangeable
interchangeable cross-reference
interchangeable
020002Interchangeable
interchangeable cross-reference
interchangeable
141-0281Interchangeable
interchangeable cross-reference
interchangeable
8409727Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 53X4787?
53X4787 is a SEAL,PLAIN,ENCASED.
What parts can replace 53X4787?
There are 19 known substitutes for 53X4787: A8743, SMD422742, 7374 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 53X4787?
53X4787 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-706-4529. 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