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PartsTable / COMPONENT / 7748764
7748764 ✓ 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. Key specifications include material: PLASTIC PHENOLIC BACKING, seal_width: 0.144 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 0.500 INCHES NOMINAL IN, accommodated_shaft_diameter: 0.304 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-818-0524, 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
7748764
NSN: 5330-00-818-0524
FSC: 5330
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialPLASTIC PHENOLIC BACKING
seal_width0.144 INCHES NOMINAL IN
constructionSOLID
housing_bore_diameter0.500 INCHES NOMINAL IN
accommodated_shaft_diameter0.304 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
NSN5330-00-818-0524
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7748764 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
•
ACCOMMODATED SHAFT DIAMETER: 0.304 INCHES NOMINAL IN
•
CONSTRUCTION: SOLID
•
HOUSING BORE DIAMETER: 0.500 INCHES NOMINAL IN
•
SEAL WIDTH: 0.144 INCHES NOMINAL IN
•
MATERIAL: PLASTIC PHENOLIC BACKING
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER0.304 INCHES NOMINAL IN
CONSTRUCTIONSOLID
HOUSING BORE DIAMETER0.500 INCHES NOMINAL IN
SEAL WIDTH0.144 INCHES NOMINAL IN
MATERIALPLASTIC PHENOLIC BACKING
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
72-503Interchangeable
interchangeable cross-reference
interchangeable
71-688Interchangeable
interchangeable cross-reference
interchangeable
BA53Interchangeable
interchangeable cross-reference
interchangeable
MILB18Interchangeable
interchangeable cross-reference
interchangeable
8051Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7748764?
7748764 is a SEAL,PLAIN.
What parts can replace 7748764?
There are 23 known substitutes for 7748764: 72-503, 71-688, BA53 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7748764?
7748764 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-818-0524. 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