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5305-01-044-2239

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-044-2239
(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
07/09/1977 (49 years ago)

hexagon head style, 0.750 inches minimum and 1.000 inches maximum thread length, right-hand thread direction, 0.969 inches minimum and 1.000 inches maximum fastener length, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.750 inches minimum and 1.000 inches maximum

Fastener Length

0.969 inches minimum and 1.000 inches maximum

Head Style

hexagon

Head Height

0.150 inches minimum and 0.163 inches maximum

Width Between Flats

0.428 inches minimum and 0.438 inches maximum

Nominal Thread Diameter

0.250 inches

Thread Quantity Per Inch

20

Minimum Tensile Strength

52000 pounds per square inch

Material

copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485 or copper alloy 230 or copper alloy 240 or copper alloy 260 or copper alloy 268 or copper alloy 342 or copper alloy 353 or copper alloy 360 or copper alloy 377 or copper alloy 764 or copper alloy 270 or copper alloy 510 or copper alloy 745 or copper alloy 752 or copper alloy 770 overall

Surface Treatment

cadmium and chromate overall

Surface Treatment Document And Classification

qq-p-416,type 2,class 3 fed spec single treatment response overall

Thread Series Designator

unc

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.

Source of Supply Code

S9I

Pseudo Item Name Code

0018257

Related Hardware Products

Part Number Description
903072-12 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-044-2239?
The FSCG of the NSN 5305-01-044-2239 is 5305
Does the NSN 5305-01-044-2239 have a Schedule B code assigned?
Yes, the Schedule B code is 7415338550
Does NSN 5305-01-044-2239 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 5305-01-044-2239 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-044-2239 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 5305-01-044-2239 was assigned to the Federal Catalog?
It was assigned 49 years ago, on Sat, Jul 9, 1977