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1N9303 — SEAL RING,METAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1N9303: SEAL RING,METAL.

The SEAL RING,METAL is a the manufacturer industrial component. Key specifications include material: IRON AND SILICON OVERALL, ring_style: EXPANDING CONCENTRIC, joint_style: VERTICAL JOINT, overall_width: 0.1140 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN, outside_diameter: 4.000 INCHES NOMINAL IN, special_features: USED ON CATERPILLAR DIESEL ENGINE MODEL D-348-TA. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-120-8068, 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
1N9303
NSN: 5330-01-120-8068
FSC: 5330 — Packing and Gasket Materials
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialIRON AND SILICON OVERALL
ring_styleEXPANDING CONCENTRIC
joint_styleVERTICAL JOINT
overall_width0.1140 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
outside_diameter4.000 INCHES NOMINAL IN
special_featuresUSED ON CATERPILLAR DIESEL ENGINE MODEL D-348-TA
radial_wall_thickness0.1180 INCHES MINIMUM AND 0.1280 INCHES MAXIMUM IN
end_item_identificationUSED ON MODEL D-348-TA DIESEL ENGINE ON DOARD 270 FT WMEC COAST GUARD VESSELS FT
cross-sectional_shape_stylePLAIN RECTANGULAR, STRAIGHT FACE
NSN5330-01-120-8068
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1N9303 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
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN RECTANGULAR, STRAIGHT FACE
•
OUTSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
JOINT STYLE: VERTICAL JOINT
•
RADIAL WALL THICKNESS: 0.1180 INCHES MINIMUM AND 0.1280 INCHES MAXIMUM IN
•
RING STYLE: EXPANDING CONCENTRIC
TECHNICAL CHARACTERISTICS
OVERALL WIDTH0.1140 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEPLAIN RECTANGULAR, STRAIGHT FACE
OUTSIDE DIAMETER4.000 INCHES NOMINAL IN
JOINT STYLEVERTICAL JOINT
RADIAL WALL THICKNESS0.1180 INCHES MINIMUM AND 0.1280 INCHES MAXIMUM IN
RING STYLEEXPANDING CONCENTRIC
SPECIAL FEATURESUSED ON CATERPILLAR DIESEL ENGINE MODEL D-348-TA
END ITEM IDENTIFICATIONUSED ON MODEL D-348-TA DIESEL ENGINE ON DOARD 270 FT WMEC COAST GUARD VESSELS FT
MATERIALIRON AND SILICON OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1N9303?
1N9303 is a SEAL RING,METAL.
What is the NSN for 1N9303?
1N9303 is cataloged in the U.S. Government catalog under NSN 5330-01-120-8068. This indicates validated use in U.S. government and defense supply chains.
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