HF4G

View detailed technical data, stock status, and sourcing information for: HF4G
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-00-684-2170

Item Name Code

13209

Assigment Date

01/01/1963 (63 years ago)

0.2495 inches minimum and 0.2515 inches maximum bore diameter, internally threaded w/bead and wrench flats and inspection hole shank style, 3b thread class, right-hand thread direction, 1.6770 inches minimum and 1.6970 inches maximum overall length

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: 1.6770 inches minimum and 1.6970 inches maximum
Bore Diameter: 0.2495 inches minimum and 0.2515 inches maximum
Outer Member Outside Diameter: 0.7400 inches minimum and 0.7600 inches maximum
Bore Center To Shank End Distance: 1.3020 inches minimum and 1.3220 inches maximum
Outer Member Width: 0.2760 inches minimum and 0.2860 inches maximum
Inner Member Width: 0.3700 inches minimum and 0.3750 inches maximum
Shank Thread Length: 0.7180 inches minimum and 0.8120 inches maximum
Inspection Hole Center To End Distance: 0.3070 inches minimum and 0.3170 inches maximum
Shank Width Across Wrench Flats: 0.3650 inches minimum and 0.3850 inches maximum
Static Radial Load Rating: 2704 pounds
Thread Diameter: 0.250 inches nominal
Features Provided: external lubrication fitting
Thread Quantity Per Inch: 28
Hardness Rating: 60.0 rockwell c minimum inner member
Special Features: lubrication groove formed by two piece insert
Material: copper alloy race insert
Material: lubricant lubrication
Material: steel rod end body
Material: steel comp e52100 inner member
Material Document And Classification: sae assn std single material response inner member
Surface Treatment: cadmium rod end body
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 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

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
47-140-240-1	Rod End Plain Bearing
HF4G	Rod End Plain Bearing

FAQs

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

What is the FSCG of the NSN 3120-00-684-2170?

The FSCG of the NSN 3120-00-684-2170 is 3120

Does the NSN 3120-00-684-2170 have a Schedule B code assigned?

Yes, the Schedule B code is 8483308055

Does NSN 3120-00-684-2170 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 3120-00-684-2170 contain precious materials?

Precious metal content is unknown

Does NSN 3120-00-684-2170 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 3120-00-684-2170 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963