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NAS12CB3-42 Machine Screw

5305-01-132-6497

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Official Item Classification

Name
Machine Screw
Part Number
NAS12CB3-42
(NSN) National Stock Number
5305-01-132-6497
(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
06/02/1982 (44 years ago)

right-hand thread direction, 2.609 inches minimum and 2.656 inches maximum fastener length, hexagon head style, 1.750 inches minimum thread length, 3a thread class

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

1.750 inches minimum

Fastener Length

2.609 inches minimum and 2.656 inches maximum

Head Style

hexagon

Head Height

0.105 inches minimum and 0.120 inches maximum

Width Between Flats

0.305 inches minimum and 0.314 inches maximum

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.190 inches

Thread Quantity Per Inch

32

Minimum Tensile Strength

160000 pounds per square inch

Hardness Rating

36.0 rockwell c minimum and 40.0 rockwell c maximum

Screw Material

steel comp e4340 or steel comp 8740

Screw Material Document And Classification

mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams6322 assn std 2nd material response

Screw Surface Treatment

cadmium and chromate

Screw Surface Treatment Document And Classification

qq-p-416,ty 2,cl 2 fed spec single treatment response

Thread Series Designator

unjf

Specification/Standard Data

80205-nas1801 professional/industrial association standard

Replacement For

Part Number Description
5305-01-051-0063 No Name Available 10/01/1991

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
NAS12CB3-42 Machine Screw
NAS1801-3-42 Machine Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-132-6497?
The FSCG of the NSN 5305-01-132-6497 is 5305
Does the NSN 5305-01-132-6497 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-132-6497 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 5305-01-132-6497 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-132-6497 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 5305-01-132-6497 was assigned to the Federal Catalog?
It was assigned 44 years ago, on Wed, Jun 2, 1982