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5305-01-166-5955

Externally Relieved Body Screw

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Official Item Classification

Name
Externally Relieved Body Screw
(NSN) National Stock Number
5305-01-166-5955
(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
11/15/1983 (42 years ago)

flat chamfer head style, 2a thread class, right-hand thread direction, 0.500 inches nominal thread length, 1.620 inches nominal fastener length

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.500 inches nominal

Fastener Length

1.620 inches nominal

Head Style

flat chamfer

Head Diameter

0.620 inches nominal

Head Height

0.150 inches nominal

First Diameter From Head

0.440 inches nominal

Second Diameter From Head

0.320 inches nominal

Third Diameter From Head

0.375 inches nominal

Fourth Diameter From Head

0.190 inches nominal

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

0.060 inches nominal

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

0.430 inches nominal

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

0.740 inches nominal

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

0.970 inches nominal

Internal Drive Style

slot

Nominal Thread Diameter

0.190 inches

Thread Quantity Per Inch

32

Externally Relieved Body Diameter Quantity

4

Material

steel overall

Surface Treatment

cadmium or zinc overall

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

0001852

Related Hardware Products

Part Number Description
12321624 Externally Relieved Body Screw
P14-2854 Externally Relieved Body Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-166-5955?
The FSCG of the NSN 5305-01-166-5955 is 5305
Does the NSN 5305-01-166-5955 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-166-5955 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 5305-01-166-5955 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-166-5955 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 5305-01-166-5955 was assigned to the Federal Catalog?
It was assigned 42 years ago, on Tue, Nov 15, 1983