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5305-01-447-2579

Externally Relieved Body Screw

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Official Item Classification

Name
Externally Relieved Body Screw
(NSN) National Stock Number
5305-01-447-2579
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
01852
(FIIG) Federal Item Identification Guide
A003B0
Date
07/31/1997 (29 years ago)

1.492 inches maximum thread length, 3a thread class, flat chamfer head style, right-hand thread direction, 2.890 inches nominal fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

1.492 inches maximum

Fastener Length

2.890 inches nominal

Head Style

flat chamfer

Head Diameter

0.550 inches minimum and 0.562 inches maximum

Head Height

0.368 inches minimum and 0.375 inches maximum

First Diameter From Head

0.3678 inches minimum and 0.3750 inches maximum

Second Diameter From Head

0.280 inches nominal

Third Diameter From Head

0.1941 inches minimum and 0.2041 inches maximum

Distance From Largest Bearing Surface Of Head To End Of First Diameter

1.015 inches nominal

Distance From Largest Bearing Surface Of Head To End Of Second Diameter

1.195 inches nominal

Distance From Largest Bearing Surface Of Head To End Of Third Diameter

1.292 inches nominal

Internal Drive Style

hexagon

Nominal Thread Diameter

0.250 inches

Width Across Flats

0.312 inches nominal

Thread Quantity Per Inch

28

Externally Relieved Body Diameter Quantity

3

Material

iron alloy 660 overall

Material Document And Classification

ams 5731 assn std single material response or ams 5737 assn std single material response overall

Surface Treatment

oxide overall

Surface Treatment Document And Classification

mil-c-13924, class 1 mil spec single treatment response overall

Thread Series Designator

unjf

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

0001852

Related Hardware Products

Part Number Description
17G111031-25 Externally Relieved Body Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-447-2579?
The FSCG of the NSN 5305-01-447-2579 is 5305
Does the NSN 5305-01-447-2579 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-447-2579 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 5305-01-447-2579 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-447-2579 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 5305-01-447-2579 was assigned to the Federal Catalog?
It was assigned 29 years ago, on Thu, Jul 31, 1997