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HT6A25 Machine Screw

5305-00-059-4585

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Official Item Classification

Name
Machine Screw
Part Number
HT6A25
(NSN) National Stock Number
5305-00-059-4585
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
06657
(FIIG) Federal Item Identification Guide
A500D0
Date
01/01/1961 (65 years ago)

0.641 inches minimum thread length, flat countersunk head style, 3a thread class, right-hand thread direction, 2.203 inches nominal fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.641 inches minimum

Fastener Length

2.203 inches nominal

Head Style

flat countersunk

Head Diameter

0.755 inches minimum and 0.760 inches maximum

Internal Drive Style

high-torque

Nominal Thread Diameter

0.375 inches

Thread Quantity Per Inch

24

Countersink Angle

100.0 degrees nominal

Screw Material Document And Classification

qq-s-763 fed spec single material response

Screw Surface Treatment

passivate

Thread Series Designator

unf

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

0006657

Related Hardware Products

Part Number Description
HT6A25 Machine Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-059-4585?
The FSCG of the NSN 5305-00-059-4585 is 5305
Does NSN 5305-00-059-4585 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 5305-00-059-4585 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-059-4585 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 5305-00-059-4585 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961