T251

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T251
Federal Supply Group
Bearings
Federal Supply Classification
3110 Unmounted Antifriction Bearings
National Stock Number
3110-00-117-0779
Item Name Code
00020
Assigment Date
01/01/1963 (63 years ago)

An antifriction bearing having a roller rolling element, designed to resist axial thrust, or to support an axial load.

1.0575 inches minimum and 1.0675 inches maximum overall height, 2.5080 inches minimum and 2.5120 inches maximum bore diameter, ground surface finish, 4.3750 inches minimum and 4.3850 inches maximum overall outside diameter, rigid alignment type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Height
1.0575 inches minimum and 1.0675 inches maximum
Bore Diameter
2.5080 inches minimum and 2.5120 inches maximum
Overall Outside Diameter
4.3750 inches minimum and 4.3850 inches maximum
Surface Finish
ground
Alignment Type
rigid
Thrust Directional Capability Designation
single
Special Features
no oil hole in band; radius at bore chamfer 0.0325 in. by 45 deg
Material
steel overall
Style Designator
tapered rollers, banded od

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
3110-00-554-3949 No Name Available 08/05/1968

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
1305AD Thrust Roller Bearing
K8975 Thrust Roller Bearing
MS17169-25 Thrust Roller Bearing
T251 Thrust Roller Bearing

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3110-00-117-0779?
The FSCG of the NSN 3110-00-117-0779 is 3110
Does the NSN 3110-00-117-0779 have a Schedule B code assigned?
Yes, the Schedule B code is 8482800080
Does NSN 3110-00-117-0779 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 3110-00-117-0779 contain precious materials?
Precious metal content is unknown
Does NSN 3110-00-117-0779 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 3110-00-117-0779 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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