NSN 778158

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

straight spline both ends bore style, 1.2500 inches face nominal width, 1.4995 inches both ends bore nominal diameter, 25.0 rockwell c minimum and 30.0 rockwell c maximum hub hardness rating, webbed, with lightening holes body style.

NSN 3020-00-272-7541 Datasheet

(NSN) National Stock Number

3020-00-272-7541

(FSG) Federal Supply Group

30 - Mechanical Power Transmission Equipment

(FSC) Federal Supply Classification

3020 - Gears, Pulleys, Sprockets and Transmission Chain

(NIIN) National Item Identification Number

00-272-7541

Requires Demilitarization

Yes

(INC) Item Name Code

05466

Date

Tue, Jan 1, 1963

Schedule B Code

8483409000

Body Style

webbed, with lightening holes

Bore Nominal Diameter

1.4995 inches both ends

Bore Style

straight spline both ends

Face Nominal Width

1.2500 inches

Hardness Rating

25.0 rockwell c minimum and 30.0 rockwell c maximum hub

Hardness Rating

40.8 rockwell c nominal teeth

Hub Nominal Diameter

1.9370 inches second end

Hub Nominal Diameter

2.0000 inches first end

Hub Style Designator

plain both ends

Material Document And Classification

66 fed std single material response and aisi/sae 4140 assn std single material response overall

Pitch Diameter

12.0000 inches nominal

Material

steel comp 4140 overall

Nominal Distance Between Body Face And Protruding Hub End

0.1870 inches second end

Nominal Distance Between Body Face And Protruding Hub End

0.5630 inches first end

Nominal Outside Diameter

12.2490 inches

Precision Classification

quality number 12

Pressure Angle

20.0000 degrees

Special Features

counterbore,1.500 in. dia,0.500 in. deep on second end

Spline Quantity

6 both ends

Style Designator

protruding hubs

Teeth Quantity

72

Tooth Form

standard

Identification

Demilitarization Code

A - 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.

Precious Metals Indicator

A - Item does not contain precious metal.

Hazardous Metals Indicator

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005466

Cross Reference

CAGE Codes

10001

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier

U.s./canadian manufacturers

08092

Department of the Navy Naval Surface Warfare Center Crane Detachment

U.s./canadian manufacturers

08KE6

Navsurfwarcen Det Picatinny

U.s./canadian manufacturers

Freight Information

Air Commodity

VZ -

Air Dimension

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

National Motor Freight Class Rating

W - Rating variable

Special Handling

9 - Other or no special handling required (sh)

Type of Cargo

Z - No special type of cargo code applicable

Uniform Freight Classification Item Number

64910

Water Commodity

593 - Motors and parts, (machinery and parts),(less than 35 feet)

National Motor Freight Classification Item Number

062070

Schedule B & Trade

Schedule B

8483-40-9000

Description

gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

End Use

21180 - Industrial machines, other

Unit of Quantity

NO

USDA

Yes

(SITC) Standard International Trade Classification

74840

(NAICS) North American Industrial Classification System

333612

Questions & Answers

1. What is the FSCG of the NSN 3020-00-272-7541?

   The FSCG of the NSN 3020-00-272-7541 is 3020

2. Does the NSN 3020-00-272-7541 have a Schedule B code assigned?

   Yes, the Schedule B code is 8483409000

3. Does NSN 3020-00-272-7541 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.

4. Does NSN 3020-00-272-7541 contain precious materials?

   Item does not contain precious metal.

5. Does NSN 3020-00-272-7541 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.

6. When the NSN 3020-00-272-7541 was assigned to the Federal Catalog?

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