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5305-01-406-8671

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-406-8671
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
29294
(FIIG) Federal Item Identification Guide
A003B0
Date
01/13/1995 (31 years ago)

right-hand thread direction, dished hexagon head style, 1.048 inches minimum and 1.078 inches maximum fastener length, 0.413 inches minimum and 0.463 inches maximum thread length, 2a thread class

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.413 inches minimum and 0.463 inches maximum

Fastener Length

1.048 inches minimum and 1.078 inches maximum

Head Style

dished hexagon

Head Height

0.156 inches minimum and 0.171 inches maximum

Grip Diameter

0.3110 inches minimum and 0.3120 inches maximum

Internal Drive Style

offset cruciform (torque set)

Nominal Thread Diameter

0.312 inches

Grip Length

0.615 inches minimum and 0.635 inches maximum

Thread Quantity Per Inch

24

Hardness Rating

36.0 rockwell c minimum and 40.0 rockwell c maximum overall

Countersink Angle

100.0 degrees nominal

Material

steel comp e4340 overall

Surface Treatment

cadmium and chromate overall

Thread Series Designator

unjf

Specification/Standard Data

80205-nas6205-10y professional/industrial association standard

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

0029294

Related Hardware Products

Part Number Description
NAS6205-10Y Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-406-8671?
The FSCG of the NSN 5305-01-406-8671 is 5305
Does the NSN 5305-01-406-8671 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-406-8671 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 5305-01-406-8671 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-406-8671 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 5305-01-406-8671 was assigned to the Federal Catalog?
It was assigned 31 years ago, on Fri, Jan 13, 1995