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5305-00-006-2408

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-00-006-2408
(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
06/23/1972 (54 years ago)

Fastener Length: 1.688 inches minimum and 1.75 inches maximum, steel material

Specs & Compatibility

Thread Series Designator

Unc

Surface Treatment Document and Classification

Qq-p-416,ty 2,cl 3 fed spec single treatment response

Thread Class

2a

Thread Direction

Right-hand

Thread Length

1.188 inches

Fastener Length

1.688 inches to 1.75 inches

Head Style

Hexagon

Head Height

0.226 inches to 0.243 inches

Shank Unthreaded Hole Diameter

0.105 inches to 0.113 inches first hole

Width Between Flats

0.551 inches to 0.563 inches

Nominal Thread Diameter

0.375 inches

Thread Quantity Per Inch

16

Minimum Tensile Strength

120000 pounds per square inch

Distance From Head Largest Bearing Surface To Shank Hole Center

1.522 inches to 1.604 inches first hole

Hardness Rating

25 to 34 rockwell c

Surface Finish

63 microinches threads

Material Document and Classification

Sae gr 5 assn std single material response

Material

Steel

Surface Treatment

Cadmium and chromate

Nondefinitive Spec/std Data

2 type and 10p style and 5 grade

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.

Pseudo Item Name Code

0018257

Related Hardware Products

Part Number Description
MS51105-363 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-006-2408?
The FSCG of the NSN 5305-00-006-2408 is 5305
Does the NSN 5305-00-006-2408 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-006-2408 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 5305-00-006-2408 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-006-2408 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 5305-00-006-2408 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Fri, Jun 23, 1972