PartsTable
Technical Data Sheet
S4F203 ✓ 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: PAPER AND GLUE AND GLYCERIN OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 3.500 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 1.438 INCHES NOMINAL IN, bolt_circle_diameter: 2.688 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-171-9010, 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
S4F203
NSN: 5330-00-171-9010
FSC: 5330
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
materialPAPER AND GLUE AND GLYCERIN OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width3.500 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter1.438 INCHES NOMINAL IN
bolt_hole_quantity2
bolt_circle_diameter2.688 INCHES NOMINAL IN
outside_corner_radius0.406 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
side_radius_from_gasket_center1.094 INCHES NOMINAL IN
material_document_and_classificationHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-171-9010
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S4F203 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
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
MATERIAL: PAPER AND GLUE AND GLYCERIN OVERALL
SIDE RADIUS FROM GASKET CENTER: 1.094 INCHES NOMINAL IN
APERTURE DIAMETER: 1.438 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
STYLE DESIGNATOR: NON-CIRCULAR
BOLT HOLE QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALPAPER AND GLUE AND GLYCERIN OVERALL
SIDE RADIUS FROM GASKET CENTER1.094 INCHES NOMINAL IN
APERTURE DIAMETER1.438 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
BOLT HOLE QUANTITY2
MATERIAL DOCUMENT AND CLASSIFICATIONHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE CORNER RADIUS0.406 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
5521Interchangeable
interchangeable cross-reference
interchangeable
166D2Interchangeable
interchangeable cross-reference
interchangeable
BT5521Interchangeable
interchangeable cross-reference
interchangeable
04603Interchangeable
interchangeable cross-reference
interchangeable
251DCInterchangeable
interchangeable cross-reference
interchangeable
1001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S4F203?
S4F203 is a GASKET.
What parts can replace S4F203?
There are 28 known substitutes for S4F203: 5521, 166D2, BT5521 and 25 more. Substitute compatibility should be verified for your specific system.
Is S4F203 still available?
S4F203 is currently cancelled.
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