5305-01-450-3253

Find complete technical information, availability, and procurement data for: 5305-01-450-3253
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-450-3253

Item Name Code

06673

Assigment Date

11/04/1997 (28 years ago)

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

right-hand thread direction, 0.490 inches minimum and 0.510 inches maximum thread length, 3.700 inches minimum and 3.720 inches maximum fastener length, knurled no. 6 head style, 2a thread class

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.490 inches minimum and 0.510 inches maximum
Fastener Length: 3.700 inches minimum and 3.720 inches maximum
Head Style: knurled no. 6
Head Diameter: 0.495 inches minimum and 0.505 inches maximum
Head Height: 2.020 inches minimum and 2.040 inches maximum
Distance From Largest Bearing Surface Of Head To End Of Third Diameter: 3.710 inches nominal
Nominal Thread Diameter: 0.250 inches
Nonstandard Thread Pitch Diameter: +0.2139 to 0.2175 inches
Thread Quantity Per Inch: 20
Material: steel comp 303 overall
Material Document And Classification: astm a581, a582 or ams 5640 assn std single material response overall
Surface Treatment Document And Classification: mil-std-171, para 5.4.1 mil std single treatment response overall
Thread Series Designator: unc

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FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-450-3253?

The FSCG of the NSN 5305-01-450-3253 is 5305

Does the NSN 5305-01-450-3253 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-450-3253 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 5305-01-450-3253 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-450-3253 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 5305-01-450-3253 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Tue, Nov 4, 1997