National 451583 0.968" x 1.499" x 0.312" Radial Shaft Oil Seal
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The National (Federal-Mogul) 451583 is a new, single-lip radial shaft oil seal with a metal outer case and rubber-coated OD, measuring 0.968 inches shaft bore (ID) x 1.499 inches housing bore (OD) x 0.312 inches wide, as stamped on the seal and printed on the original Federal-Mogul box. The seal features a steel-reinforced shell with a dark red elastomeric outer coating for a press-fit housing seal, a garter-spring-loaded primary sealing lip visible on the inner face, and a secondary dust lip — a design consistent with National's Type R single-lip with excluder lip construction. Manufactured in Mexico and distributed by Federal-Mogul Corporation (Southfield, MI), this seal is suitable for automotive and light industrial shaft sealing applications where a sub-1-inch shaft runs in a 1.499-inch bore housing.
Product Specifications
| Brand | National / Federal-Mogul |
| Part Number | 451583 |
| Shaft Diameter (ID) | 0.968 in |
| Housing Bore (OD) | 1.499 in |
| Width (Height) | 0.312 in |
| Outer Case Material | Steel |
| Outer Coating | Rubber-coated OD |
| Sealing Lip Type | Single primary lip with garter spring and secondary dust/excluder lip |
| Country of Manufacture | Mexico |
| Condition | New |