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5305-01-142-8376

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-142-8376
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
18257
(FIIG) Federal Item Identification Guide
A003B0
Date
11/21/1982 (43 years ago)

right-hand thread direction, 5.406 inches minimum and 5.500 inches maximum fastener length, hexagon head style, 2a thread class, 1.375 inches minimum thread length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.375 inches minimum

Fastener Length

5.406 inches minimum and 5.500 inches maximum

Head Style

hexagon

Head Height

0.302 inches minimum and 0.323 inches maximum

Width Between Flats

0.736 inches minimum and 0.750 inches maximum

Shank Unthreaded Hole Diameter

0.109 inches minimum and 0.113 inches maximum first hole

Nominal Thread Diameter

0.500 inches

Thread Quantity Per Inch

20

Minimum Tensile Strength

120000 pounds per square inch

Hardness Rating

25.0 rockwell c minimum and 34.0 rockwell c maximum overall

Distance From Head Largest Bearing Surface To Shank Hole Center

5.224 inches minimum and 5.338 inches maximum first hole

Material

steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1034 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541 overall

Surface Treatment

cadmium and chromate overall

Surface Treatment Document And Classification

qq-p-416,ty 2,cl 2 fed spec single treatment response overall

Thread Series Designator

unf

Nondefinitive Spec/Std Data

2 type and 10p style and 5 grade

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

0018257

Related Hardware Products

Part Number Description
MS-51106-429 Hexagon Head Cap Screw
MS51106-429 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-142-8376?
The FSCG of the NSN 5305-01-142-8376 is 5305
Does the NSN 5305-01-142-8376 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-142-8376 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 5305-01-142-8376 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-142-8376 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 5305-01-142-8376 was assigned to the Federal Catalog?
It was assigned 43 years ago, on Sun, Nov 21, 1982