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S8P274 ✓ 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. Key specifications include material: ALUMINUM ALLOY AND RUBBER SYNTHETIC OVERALL, aperture_width: 4.000 INCHES NOMINAL IN, aperture_length: 6.120 INCHES NOMINAL IN, style_designator: OVAL, gage_ring_thickness: 0.080 INCHES NOMINAL IN, bearing_surface_width: 1.120 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-830-7284, 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
S8P274
NSN: 5330-00-830-7284
FSC: 5330
CAGE: 95272 — STILLMAN SEAL CORPORATION DIV STILLMAN SEAL CORPERATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY AND RUBBER SYNTHETIC OVERALL
aperture_width4.000 INCHES NOMINAL IN
aperture_length6.120 INCHES NOMINAL IN
style_designatorOVAL
gage_ring_thickness0.080 INCHES NOMINAL IN
bearing_surface_width1.120 INCHES NOMINAL IN
maximum_pressure_rating200.0 POUNDS PER SQUARE INCH (PSI) LBS
cross-sectional_thickness0.120 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND SYNTHETIC RUBBER
material_document_and_classificationMIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-830-7284
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S8P274 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
•
STYLE DESIGNATOR: OVAL
•
MATERIAL: ALUMINUM ALLOY AND RUBBER SYNTHETIC OVERALL
•
APERTURE LENGTH: 6.120 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.120 INCHES NOMINAL IN
•
GAGE RING THICKNESS: 0.080 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BEARING SURFACE WIDTH: 1.120 INCHES NOMINAL IN
•
MAXIMUM PRESSURE RATING: 200.0 POUNDS PER SQUARE INCH (PSI) LBS
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATOROVAL
MATERIALALUMINUM ALLOY AND RUBBER SYNTHETIC OVERALL
APERTURE LENGTH6.120 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.120 INCHES NOMINAL IN
GAGE RING THICKNESS0.080 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BEARING SURFACE WIDTH1.120 INCHES NOMINAL IN
MAXIMUM PRESSURE RATING200.0 POUNDS PER SQUARE INCH (PSI) LBS
CROSS-SECTIONAL SHAPE STYLEMETAL AND SYNTHETIC RUBBER
APERTURE WIDTH4.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
SCC23866Interchangeable
interchangeable cross-reference
interchangeable
EP2819Interchangeable
interchangeable cross-reference
interchangeable
2819Interchangeable
interchangeable cross-reference
interchangeable
857595Interchangeable
interchangeable cross-reference
interchangeable
320-0012-002Interchangeable
interchangeable cross-reference
interchangeable
2819PRInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S8P274?
S8P274 is a GASKET.
What parts can replace S8P274?
There are 15 known substitutes for S8P274: SCC23866, EP2819, 2819 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S8P274?
S8P274 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-830-7284. 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