ARB 3-54-12

View detailed technical data, stock status, and sourcing information for: ARB 3-54-12
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-028-9519

Item Name Code

13209

Assigment Date

10/13/1976 (49 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

1.7505 inches minimum and 1.7805 inches maximum overall length, internally threaded w/bead and wrench flats and inspection hole shank style, right-hand thread direction, 3b thread class, 0.1895 inches minimum and 0.1915 inches maximum bore diameter

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Shank Style: internally threaded w/bead and wrench flats and inspection hole
Overall Length: 1.7505 inches minimum and 1.7805 inches maximum
Bore Diameter: 0.1895 inches minimum and 0.1915 inches maximum
Outer Member Outside Diameter: 0.7710 inches minimum and 0.7910 inches maximum
Bore Center To Shank End Distance: 1.3650 inches minimum and 1.3850 inches maximum
Outer Member Width: 0.3320 inches minimum and 0.3470 inches maximum
Inner Member Width: 0.4370 inches nominal
Shank Thread Length: 0.7190 inches minimum and 0.8120 inches maximum
Inspection Hole Center To End Distance: 0.3120 inches nominal
Shank Width Across Wrench Flats: 0.3750 inches nominal
Static Radial Load Rating: 2100 pounds
Thread Diameter: 0.250 inches nominal
Thread Quantity Per Inch: 28
Hardness Rating: 57.0 rockwell c minimum and 61.0 rockwell c maximum inner member
Hardness Rating: 26.0 rockwell c minimum rod end body
Hardness Rating: 28.0 rockwell c minimum and 36.0 rockwell c maximum race insert
Special Features: chromium plating on e52100 steel inner member only
Material: lubricant dry film lubrication
Material: steel comp 630 or steel comp 631 or steel comp 410 race insert
Material: steel comp 4130 or steel comp 4340 rod end body
Material: steel comp e52100 or steel comp 440c inner member
Material Document And Classification: bms 3-8, mcdonnell douglas corp, mcdonnell aircraft division mfr ref single material response lubrication
Surface Treatment: cadmium inner member
Surface Treatment: cadmium rod end body
Style Designator: ball type
Thread Series Designator: unf

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
51132DD	Rod End Plain Bearing
AR3SS4-12	Rod End Plain Bearing
ARB 3-54-12	Rod End Plain Bearing
BACB10A399M2	Rod End Plain Bearing
BRE-3065-M-2	Rod End Plain Bearing
FXJ34-14B-2	Rod End Plain Bearing
HB-3-145	Rod End Plain Bearing
KB-3SS-1D6	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-028-9519?

The FSCG of the NSN 3120-01-028-9519 is 3120

Does the NSN 3120-01-028-9519 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-028-9519 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 3120-01-028-9519 contain precious materials?

Precious metal content is unknown

Does NSN 3120-01-028-9519 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 3120-01-028-9519 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Wed, Oct 13, 1976