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5305-01-308-8203

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-308-8203
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
29294
(FIIG) Federal Item Identification Guide
A003B0
Date
10/05/1989 (37 years ago)

0.579 inches minimum and 0.609 inches maximum fastener length, right-hand thread direction, fillister countersunk head style, 0.381 inches minimum and 0.431 inches maximum thread length, 3a thread class

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.381 inches minimum and 0.431 inches maximum

Fastener Length

0.579 inches minimum and 0.609 inches maximum

Head Style

fillister countersunk

Head Diameter

0.2996 inches minimum and 0.3016 inches maximum

Head Height

0.013 inches maximum

Grip Diameter

0.1890 inches minimum and 0.1895 inches maximum

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.190 inches

Grip Length

0.178 inches minimum and 0.198 inches maximum

Thread Quantity Per Inch

32

Minimum Tensile Strength

125000 pounds per square inch

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Material

nickel alloy 718 overall

Surface Treatment

passivate overall

Thread Series Designator

unjf

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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.

Pseudo Item Name Code

0029294

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Frequently Asked Questions

What is the FSCG of the NSN 5305-01-308-8203?
The FSCG of the NSN 5305-01-308-8203 is 5305
Does the NSN 5305-01-308-8203 have a Schedule B code assigned?
Yes, the Schedule B code is 7508900000
Does NSN 5305-01-308-8203 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 5305-01-308-8203 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-308-8203 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 5305-01-308-8203 was assigned to the Federal Catalog?
It was assigned 37 years ago, on Thu, Oct 5, 1989