3120-01-221-8752

Find complete technical information, availability, and procurement data for: 3120-01-221-8752
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-221-8752

Item Name Code

13209

Assigment Date

12/04/1985 (40 years ago)

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends with threads of the same nominal diameter. All or part of the unthreaded section has a cross-sectional diameter greater than the nominal stud size plus 0.020 inches (0.508 mm). It may be thread relieved. See also stud, locked in.

externally threaded shank style, right-hand thread direction, 3a thread class, 1.9525 inches nominal overall length, 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: 3a
Thread Direction: right-hand
Shank Style: externally threaded
Overall Length: 1.9525 inches nominal
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: 1.5520 inches minimum and 1.5720 inches maximum
Outer Member Width: 0.3320 inches minimum and 0.3420 inches maximum
Inner Member Width: 0.4320 inches minimum and 0.4370 inches maximum
Shank Thread Length: 0.9688 inches minimum and 1.0625 inches maximum
Static Radial Load Rating: 4500 pounds
Thread Diameter: 0.312 inches nominal
Features Provided: external lubrication fitting
Thread Quantity Per Inch: 24
Hardness Rating: 36.0 rockwell c minimum and 42.0 rockwell c maximum rod end body
Hardness Rating: 57.0 rockwell c minimum and 61.0 rockwell c maximum inner member
Lubrication Feature: groove inner member
Special Features: race insert,6th and 7th material responses per qq-b-637; plating on external surfaces of race insert and body only; no plating on bore of ball; optional lubricant reservoir thru shank length
Material: copper alloy 606 or copper alloy 630 or copper alloy 614 or copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485 race insert
Material: grease lubrication
Material: steel comp 4130 or steel comp e4340 or steel comp 1018 rod end body
Material: steel comp e52100 or steel comp 440c inner member
Material Document And Classification: ams 7440 assn std 1st material response or mil-s-7420 mil spec 1st material response or qq-s-763 fed spec 2nd material response or ams 5630 assn std 2nd material response inner member
Material Document And Classification: mil-g-23827 mil spec single material response lubrication
Material Document And Classification: mil-s-6758 mil spec 1st material response or ams 6370 assn std 1st material response or mil-s-5000 mil spec 2nd material response or ams 6415 assn std 2nd material response or astm a108 assn std 3rd material response or ams 5069 assn std 3rd material response rod end body
Material Document And Classification: qq-c-465 fed spec 1st material response or qq-c-465 fed spec 2nd material response or qq-c-465 fed spec 3rd material response or qq-b-637 fed spec 4th material response or qq-b-637 fed spec 5th material response race insert
Surface Treatment: cadmium race insert
Surface Treatment: cadmium rod end body
Surface Treatment: chromium inner member
Surface Treatment Document And Classification: qq-c-320 fed spec single treatment response inner member
Surface Treatment Document And Classification: qq-p-416,type1,class 2 fed spec single treatment response race insert
Surface Treatment Document And Classification: qq-p-416,type1,class 2 fed spec single treatment response rod end body
Style Designator: ball type
Test Data Document: "81349-mil-i-6868 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unf
Specification/Standard Data: 26512-gb525ab manufacturers specification control

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
AB3E35FN	Rod End Plain Bearing
BRE-3090-L	Rod End Plain Bearing
GB525AB7	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-01-221-8752?

The FSCG of the NSN 3120-01-221-8752 is 3120

Does the NSN 3120-01-221-8752 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-01-221-8752 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 3120-01-221-8752 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-221-8752 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 3120-01-221-8752 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Wed, Dec 4, 1985