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5305-00-655-9443

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-00-655-9443
(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)

1.440 inches minimum and 1.500 inches maximum fastener length, hexagon head style, 2a thread class, right-hand thread direction, 1.250 inches minimum and 1.440 inches maximum thread length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.250 inches minimum and 1.440 inches maximum

Fastener Length

1.440 inches minimum and 1.500 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

Nominal Thread Diameter

0.500 inches

Thread Quantity Per Inch

13

Minimum Tensile Strength

60000 pounds per square inch

Material

copper alloy 464 or copper alloy 462 overall

Material Document And Classification

qq-b-637,comp 1 fed spec 1st material response or qq-b-637,comp 4 fed spec 2nd material response overall

Thread Series Designator

unc

Replacement For

Part Number Description
5305-00-722-7520 No Name Available 08/26/1966

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
21-11125 Hexagon Head Cap Screw
364-16050 PIECE 123 Hexagon Head Cap Screw
MS35309-413 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-655-9443?
The FSCG of the NSN 5305-00-655-9443 is 5305
Does the NSN 5305-00-655-9443 have a Schedule B code assigned?
Yes, the Schedule B code is 7415338550
Does NSN 5305-00-655-9443 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 5305-00-655-9443 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-655-9443 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 5305-00-655-9443 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963