4020U

View detailed technical data, stock status, and sourcing information for: 4020U

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4020U
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-010-2342
Item Name Code
06673
Assigment Date
09/25/1975 (50 years ago)

0.438 inches nominal thread length, right-hand thread direction, 0.500 inches nominal fastener length, knurled no. 1 head style, 2a thread class

Product Characteristics

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

Thread Class
2a
Thread Direction
right-hand
Thread Length
0.438 inches nominal
Fastener Length
0.500 inches nominal
Head Style
knurled no. 1
Head Diameter
0.250 inches nominal
Head Height
0.500 inches nominal
Point Style
flat
Nominal Thread Diameter
0.164 inches
Thread Quantity Per Inch
32
Material
steel comp 303 overall
Material Document And Classification
qq-s-764 fed spec single material response overall
Surface Treatment
passivate overall
Surface Treatment Document And Classification
mil-f-14072,finish e300 mil spec single treatment response overall
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-316-8945 No Name Available 09/01/1982
5305-00-536-7354 No Name Available 01/01/1983

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
4020U Thumbscrew
860473-11 Thumbscrew

FAQs

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

What is the FSCG of the NSN 5305-01-010-2342?
The FSCG of the NSN 5305-01-010-2342 is 5305
Does the NSN 5305-01-010-2342 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-010-2342 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 5305-01-010-2342 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-010-2342 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 5305-01-010-2342 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Thu, Sep 25, 1975

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