National 6668S Seal or gasket

National 6668S is a seal or gasket in Hardware & Accessories, US catalog. Listed by National Industrial Applications, Product Specifications & Interchange Guide (Catalog No. 430i, July 2019; Federal-Mogul Motorparts).

Radial Shaft Seals

Specifications

Lip material (code as printed)

S

Shaft size

1.375

Housing bore

1.875

Seal O.D.

1.878

Seal width

0.187

Type / illustration

33

Section as printed

RADIAL SHAFT SEALS

Name taken from

the section heading, pdf page 93

Specifications from National Oil Seals & Bearings Specifications Guide (DRiV, 2021)

Shaft

1.375″ / 34.930mm

Housing bore

1.875″ / 47.630mm

Outside diameter

1.878″ / 47.700mm

Width

0.187″ / 4.750mm

Material

Nitrile

Type

33

Name taken from

the section heading, pdf page 128

About this kind of part (general, written by SearchForPart)

Seals a joint against leaks of fluid, air, water or dust. A leak at a joint or a part taken apart calls for a new one. Check size, material and the joint it seals.

When ordering, give the part number exactly as printed and its maker, and the make, model and year of the truck, trailer, reefer unit or machine (or the engine or unit serial number). SearchForPart shows fitment only as the source printed it: check it before you order.

Reference numbers

Listed by the maker as corresponding

• Listed by National as corresponding to Trostel A46525S; interchange not verified by SearchForPart.
• Listed by National as corresponding to General Electric Cor 125A848BJ2; interchange not verified by SearchForPart.
• Listed by National as corresponding to Massey-Ferguson 194271MI; interchange not verified by SearchForPart.
• Listed by National as corresponding to Massey-Ferguson 195271M1; interchange not verified by SearchForPart.
• Listed by National as corresponding to Garlock 27063-7521; interchange not verified by SearchForPart.
• Listed by National as corresponding to Garlock 27063-9528; interchange not verified by SearchForPart.
• Listed by National as corresponding to Minneapolis-Moline 35A6303; interchange not verified by SearchForPart.
• Listed by National as corresponding to Trostel 42411S; interchange not verified by SearchForPart.
• Listed by National as corresponding to Timken 6668S; interchange not verified by SearchForPart.
• Listed by National as corresponding to Crown Coach EL-MO 41760328; interchange not verified by SearchForPart.
• Listed by National as corresponding to Garlock 92X7521; interchange not verified by SearchForPart.
• Listed by National as corresponding to Garlock 92X9528; interchange not verified by SearchForPart.

Reference numbers as printed by the maker. They are not a statement that the parts are interchangeable. Confirm with the manufacturer before ordering.

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Catalog information provided by National Industrial Applications, Product Specifications & Interchange Guide (Catalog No. 430i, July 2019; Federal-Mogul Motorparts). Fitment for your equipment is not verified by this page. SearchForPart does not show a price here.