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5305-01-217-4008

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-217-4008
(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
09/26/1985 (41 years ago)

3a thread class, right-hand thread direction, flat countersunk head style, 0.500 inches nominal thread length, 3.130 inches nominal fastener length

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.500 inches nominal

Fastener Length

3.130 inches nominal

Head Style

flat countersunk

Head Diameter

0.469 inches minimum and 0.477 inches maximum

Grip Diameter

0.2470 inches minimum and 0.2480 inches maximum

Internal Drive Style

slot

Nominal Thread Diameter

0.250 inches

Grip Length

2.630 inches nominal

Thread Quantity Per Inch

28

Hardness Rating

44.0 rockwell c minimum and 47.0 rockwell c maximum overall

Countersink Angle

100.0 degrees nominal

Surface Finish

63.0 microinches grip

Material

steel comp 4140 overall

Material Document And Classification

mil-s-5626 mil spec single material response overall

Surface Treatment

cadmium and chromate overall

Surface Treatment Document And Classification

qq-p-416,type 2 class 2 fed spec single treatment response 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

0029294

Related Hardware Products

Part Number Description
302AS215 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-217-4008?
The FSCG of the NSN 5305-01-217-4008 is 5305
Does the NSN 5305-01-217-4008 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-217-4008 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 5305-01-217-4008 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-217-4008 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 5305-01-217-4008 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Thu, Sep 26, 1985