WC4020-6-10

View detailed technical data, stock status, and sourcing information for: WC4020-6-10
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-497-0421

Item Name Code

29294

Assigment Date

05/07/2002 (24 years ago)

A rubber cylindrical shaped item containing air pressure. Used in conjunction wtih valves, height control, brake protection and the like. Designed to be mounted between the axle and frame to provide cushioning stability and soft ride for heavy suspension systems.

1.250 inches minimum and 1.297 inches maximum fastener length, 3a thread class, 0.641 inches nominal thread length, flat countersunk undercut head style, right-hand thread direction

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
Thread Length: 0.641 inches nominal
Fastener Length: 1.250 inches minimum and 1.297 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.756 inches minimum and 0.760 inches maximum
Head Height: 0.115 inches minimum and 0.117 inches maximum
Grip Diameter: 0.374 inches minimum and 0.375 inches maximum
Internal Drive Style: high-torque
End Item Identification: cbil for c/d/
Nominal Thread Diameter: 0.375 inches
Grip Length: 0.625 inches nominal
Thread Quantity Per Inch: 24
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp xm-13 overall
Material Document And Classification: ams5629, comp xm-13 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unjf

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
11925C6-10D	Close Tolerance Screw
HT4020-6-10	Close Tolerance Screw
ST3M652C6-10D	Close Tolerance Screw
WC4020-6-10	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-497-0421?

The FSCG of the NSN 5305-01-497-0421 is 5305

Does the NSN 5305-01-497-0421 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-497-0421 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 5305-01-497-0421 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-497-0421 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 5305-01-497-0421 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Tue, May 7, 2002