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5305-01-105-7189

Machine Screw

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Official Item Classification

Name
Machine Screw
(NSN) National Stock Number
5305-01-105-7189
(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
01/03/1981 (45 years ago)

1.875 inches nominal fastener length, flat countersunk head style, right-hand thread direction, 1.125 inches nominal thread length, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.125 inches nominal

Fastener Length

1.875 inches nominal

Head Style

flat countersunk

Head Diameter

0.875 inches nominal

Internal Drive Style

slot

Nominal Thread Diameter

0.500 inches

Thread Quantity Per Inch

20

Countersink Angle

80.0 degrees minimum and 82.0 degrees maximum

Screw Material

nickel alloy 400

Screw Material Document And Classification

qq-n-281 fed spec single material response

Thread Series Designator

unf

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.

Pseudo Item Name Code

0006657

Related Hardware Products

Part Number Description
125-2143985PIECE 5 Machine Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-105-7189?
The FSCG of the NSN 5305-01-105-7189 is 5305
Does the NSN 5305-01-105-7189 have a Schedule B code assigned?
Yes, the Schedule B code is 7508900000
Does NSN 5305-01-105-7189 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 5305-01-105-7189 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-105-7189 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 5305-01-105-7189 was assigned to the Federal Catalog?
It was assigned 45 years ago, on Sat, Jan 3, 1981