Linear-Rotary Motion Roller

51B24891

51B24891
(NSN) National Stock Number
3120-00-030-8384
Federal Supply Classification
3120 Unmounted Plain Bearings
Item Name Code
28215
Schedule B Code
8482997090
Summary

Not casehardened casehardening indicator, 1.400 inches minimum and 1.410 inches maximum counterbore diameter, 0.200 inches nominal counterbore depth, 2.000 inches minimum and 2.003 inches maximum outside diameter, 1.000 inches nominal face width, 0.625 inches minimum and 0.632 inches maximum bore inside diameter

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
2 - - SE
Identification

A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes:bearing, roller, cylindrical; roller, electrical switch; and friction bearings. See also cam follower, needle bearing.

INC FIIG Concept Condition
28215 T267-K - 1
Specifications
Casehardening Indicator
not casehardened
Details Indicates whether or not a ferrous alloy object has been subjected to a process whereby the outer portion is made substantially harder than the inner portion or core.
Counterbore Diameter
1.400 inches minimum and 1.410 inches maximum
Details The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.
Counterbore Depth
0.200 inches nominal
Details The depth of the process used to enlarge part of a hole.
Outside Diameter
2.000 inches minimum and 2.003 inches maximum
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
Face Width
1.000 inches nominal
Details A measurement taken at right angles to the length of the face,in distinction from thickness.
Bore Inside Diameter
0.625 inches minimum and 0.632 inches maximum
Details The length of a straight line which passes through the center of a circular bore,and terminates at the inside circumference.
Chamfer/Radius Of Outside Corner
0.060 in. by 45 deg
Details None.
Material
steel
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
cadmium or zinc
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Style Designator
plain, counterbored
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
3120PL0574508 9009H 9 - 6 9 - WP
51B24891 97151 5 - 3 2 - SE
51B24891 98750 2 - 5 9 - SE
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
58770 - W -
RVC WCC TCC SHC
- 742 Z 9
Price and Availability Quote

Send us a quick request for quote using the form below:

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Genuine Manufacturers Parts
  • 100% Product Inspection
  • 7 Year Sales Record Retention
  • Fast On-Time Delivery
  • HAZMAT Certified
  • Global Shipping
Manufacturer
DEPARTMENT OF THE AIR FORCE
CAGE: 80049
WASHINGTON , DC , 20330
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 3120-00-030-8384
What is the NIIN of the NSN 3120-00-030-8384?
The National Item Identification Number (NIIN) of the NSN 3120-00-030-8384 is 00-030-8384
When the NSN 3120-00-030-8384 was assigned to the Federal Catalog?
It was assigned 62 years ago, on Tue, Jan 1, 1963
Does the NSN 3120-00-030-8384 contain any precious metals?
Does not contain precious metal
Does the NSN 3120-00-030-8384 contain any hazardous material?
No data in HMIRS

Can't Find It

If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.

Similar Products
Who we are?

We are a trusted provider of milspec and aerospace hardware, offering high-quality consumables and parts. With a commitment to excellence, we guarantee reliable and fast delivery through our network of logistics centers. Our mission is to support the aerospace industry with precision and efficiency.

Contact
3555 Agricultural Center Dr.
St. Augustine, FL, 32092
United States
© 2025 Aerospace Hardware Store, Inc. All rights reserved.
Made in USA