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5305-00-010-0051

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-00-010-0051
(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
01/01/1963 (63 years ago)

1.250 inches nominal fastener length, 1.250 inches minimum thread length, right-hand thread direction, hexagon head style, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.250 inches minimum

Fastener Length

1.250 inches nominal

Head Style

hexagon

Head Height

0.312 inches nominal

Width Between Flats

0.736 inches minimum and 0.750 inches maximum

Nominal Thread Diameter

0.500 inches

Thread Quantity Per Inch

20

Minimum Tensile Strength

69000 pounds per square inch

Hardness Rating

100.0 rockwell b maximum overall

Material

steel overall

Material Document And Classification

sae gr 2 assn std single material response overall

Thread Series Designator

unf

Nondefinitive Spec/Std Data

2 type and 10p style

Replacement For

Part Number Description
5305-00-639-7988 No Name Available 01/01/1963

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.

Source of Supply Code

S9I

Pseudo Item Name Code

0018257

Related Hardware Products

Part Number Description
100051 Hexagon Head Cap Screw
802747 Hexagon Head Cap Screw
85177 Hexagon Head Cap Screw
CF8X20 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-010-0051?
The FSCG of the NSN 5305-00-010-0051 is 5305
Does the NSN 5305-00-010-0051 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-010-0051 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 5305-00-010-0051 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-010-0051 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 5305-00-010-0051 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963