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5305-00-558-7643

Externally Relieved Body Screw

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Official Item Classification

Name
Externally Relieved Body Screw
(NSN) National Stock Number
5305-00-558-7643
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
01852
(FIIG) Federal Item Identification Guide
A003B0
Date
01/01/1961 (65 years ago)

right-hand thread direction, 2a thread class, 6.500 inches nominal fastener length, fillister head style, 1.000 inches minimum thread length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.000 inches minimum

Fastener Length

6.500 inches nominal

Head Style

fillister

Head Diameter

0.375 inches nominal

Head Height

0.156 inches nominal

First Diameter From Head

0.245 inches minimum and 0.255 inches maximum

Second Diameter From Head

0.212 inches minimum and 0.214 inches maximum

Distance From Largest Bearing Surface Of Head To End Of First Diameter

0.156 inches nominal

Distance From Largest Bearing Surface Of Head To End Of Second Diameter

5.500 inches nominal

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.250 inches

Thread Quantity Per Inch

20

Externally Relieved Body Diameter Quantity

2

Material

steel overall

Surface Treatment

cadmium overall

Thread Series Designator

unc

Replacement For

Part Number Description
5305-00-422-6821 No Name Available 08/01/1978
5306-00-493-3949 No Name Available 10/28/1970

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

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.

Source of Supply Code

S9I

Pseudo Item Name Code

0001852

Related Hardware Products

Part Number Description
1300503 Externally Relieved Body Screw
1402573 Externally Relieved Body Screw
5062088-00 Externally Relieved Body Screw
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GJ20 Externally Relieved Body Screw
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Frequently Asked Questions

What is the FSCG of the NSN 5305-00-558-7643?
The FSCG of the NSN 5305-00-558-7643 is 5305
Does the NSN 5305-00-558-7643 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-558-7643 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 5305-00-558-7643 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-558-7643 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 5305-00-558-7643 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961