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5305-01-193-6845

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-193-6845
(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
11/06/1984 (41 years ago)

right-hand thread direction, flat countersunk undercut head style, 3a thread class, 0.640 inches minimum and 0.687 inches maximum fastener length, 0.442 inches minimum and 0.509 inches maximum thread length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.442 inches minimum and 0.509 inches maximum

Fastener Length

0.640 inches minimum and 0.687 inches maximum

Head Style

flat countersunk undercut

Head Diameter

0.5018 inches minimum and 0.5066 inches maximum

Head Height

0.0713 inches minimum and 0.0733 inches maximum

Grip Diameter

0.2490 inches minimum and 0.2495 inches maximum

Internal Drive Style

high-torque

End Item Identification

harrier av-8b aircraft.

Nominal Thread Diameter

0.250 inches

Grip Length

0.178 inches minimum and 0.198 inches maximum

Thread Quantity Per Inch

28

Countersink Angle

100.0 degrees nominal

Surface Finish

32.0 microinches grip

Surface Finish

32.0 microinches threads

Special Features

cetyl alcohol lubrication,furnished with o ring

Material

titanium alloy overall

Material Document And Classification

ams 4967,comp 6al-4v assn std single material response 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 5305-01-193-6845?
The FSCG of the NSN 5305-01-193-6845 is 5305
Does the NSN 5305-01-193-6845 have a Schedule B code assigned?
Yes, the Schedule B code is 8109900000
Does NSN 5305-01-193-6845 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 5305-01-193-6845 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-193-6845 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 5305-01-193-6845 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Tue, Nov 6, 1984