Sleeve Bearing

A51K56644-11

A51K56644-11
(NSN) National Stock Number
3120-00-003-6387
Federal Supply Classification
3120 Unmounted Plain Bearings
Item Name Code
13205
Schedule B Code
8482997090
Summary

0.8650 inches nominal overall length, 2.1800 inches minimum and 2.1900 inches maximum body outside diameter, 1.9320 inches minimum and 1.9380 inches maximum body inside diameter, round inside right corner corner shape, round outside left corner corner shape, square inside left corner corner shape

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. It must have a visible or detectable means of lubrication or be self-lubricated. The over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. Includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. See also bushing, sleeve; spacer, sleeve; and washer (as modified). Excludes:pin, hollow.

INC FIIG Concept Condition
13205 A045A0 - 1
Specifications
Overall Length
0.8650 inches nominal
Details The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
Body Outside Diameter
2.1800 inches minimum and 2.1900 inches maximum
Details The length of a straight line which passes through the center of the body,and terminates at the outside circumference.
Body Inside Diameter
1.9320 inches minimum and 1.9380 inches maximum
Details The length of a straight line which passes through the center of a body,and terminates at the inside circumference.
Corner Shape
round inside right corner
Details The physical configuration of the corner.
Corner Shape
round outside left corner
Details The physical configuration of the corner.
Corner Shape
square inside left corner
Details The physical configuration of the corner.
Corner Shape
square outside right corner
Details The physical configuration of the corner.
Hardness Rating
37.0 rockwell c minimum overall and 43.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Surface Finish
125.0 microinches overall
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Material
copper alloy 172 overall or copper alloy 173 overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
qq-c-530,condition a fed spec single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Style Designator
split, plain, no outside flanges
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
A51K56644-11 61174 1 - 3 9 - KE
A51K56644-11 26512 1 - 5 9 - KE
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
58860 - P -
RVC WCC TCC SHC
- 742 Z 9

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
NORTHROP GRUMMAN SYSTEMS CORPORATION
CAGE: 79RG9
JACKSONVILLE , FL , 32221-8130
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 3120-00-003-6387
What is the NIIN of the NSN 3120-00-003-6387?
The National Item Identification Number (NIIN) of the NSN 3120-00-003-6387 is 00-003-6387
When the NSN 3120-00-003-6387 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sat, May 27, 1972
Does the NSN 3120-00-003-6387 contain any precious metals?
Type/content is unknown
Does the NSN 3120-00-003-6387 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