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5305-01-193-6859

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-193-6859
(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)

flat countersunk head style, right-hand thread direction, 3a thread class, 0.693 inches minimum and 0.740 inches maximum fastener length, 0.308 inches minimum and 0.375 inches maximum thread length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.308 inches minimum and 0.375 inches maximum

Fastener Length

0.693 inches minimum and 0.740 inches maximum

Head Style

flat countersunk

Head Diameter

0.339 inches minimum and 0.381 inches maximum

Grip Diameter

0.1885 inches minimum and 0.1895 inches maximum

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.190 inches

Grip Length

0.365 inches minimum and 0.385 inches maximum

Thread Quantity Per Inch

32

Minimum Tensile Strength

220000 pounds per square inch

Hardness Rating

46.0 rockwell c minimum and 50.0 rockwell c maximum overall

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Surface Finish

32.0 microinches grip

Surface Finish

32.0 microinches threads

Material

steel comp h11 overall

Material Document And Classification

ams 6487 assn std single material response overall

Surface Treatment

cadmium or cadmium and chromate overall

Surface Treatment Document And Classification

nas672 assn std 1st treatment response and mil-c-8837 ty2 cl2 mil spec 2nd treatment response overall

Thread Series Designator

unjf

Replacement For

Part Number Description
5305-00-083-2135 No Name Available 06/01/1989
5305-01-011-4040 No Name Available 07/01/1988

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

Related Hardware Products

Part Number Description
1067061-3-6 Close Tolerance Screw
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HR204-3-6 Close Tolerance Screw
SC1779-3-6 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-193-6859?
The FSCG of the NSN 5305-01-193-6859 is 5305
Does the NSN 5305-01-193-6859 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-193-6859 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 5305-01-193-6859 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-193-6859 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 5305-01-193-6859 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Tue, Nov 6, 1984