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5305-01-449-4055

Machine Screw

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Official Item Classification

Name
Machine Screw
(NSN) National Stock Number
5305-01-449-4055
(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
09/30/1997 (29 years ago)

flat countersunk head style, right-hand thread direction, 1.750 inches minimum thread length, 2.940 inches nominal fastener length, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

1.750 inches minimum

Fastener Length

2.940 inches nominal

Head Style

flat countersunk

Head Diameter

0.285 inches minimum and 0.332 inches maximum

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.164 inches

Thread Quantity Per Inch

32

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Screw Material

copper alloy

Screw Surface Treatment

oxide

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.

Pseudo Item Name Code

0006657

Related Hardware Products

Part Number Description
LS12906-344 Machine Screw
MS24693-BB66 Machine Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-449-4055?
The FSCG of the NSN 5305-01-449-4055 is 5305
Does the NSN 5305-01-449-4055 have a Schedule B code assigned?
Yes, the Schedule B code is 7415338550
Does NSN 5305-01-449-4055 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 5305-01-449-4055 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-449-4055 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 5305-01-449-4055 was assigned to the Federal Catalog?
It was assigned 29 years ago, on Tue, Sep 30, 1997