173040-7

View detailed technical data, stock status, and sourcing information for: 173040-7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-318-8249

Item Name Code

06673

Assigment Date

04/26/1990 (36 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

knurled no. 2 head style, 0.252 inches minimum and 0.322 inches maximum thread length, 2a thread class, 0.302 inches minimum and 0.322 inches maximum fastener length, right-hand thread direction

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: 0.252 inches minimum and 0.322 inches maximum
Fastener Length: 0.302 inches minimum and 0.322 inches maximum
Head Style: knurled no. 2
Head Diameter: 0.375 inches minimum and 0.395 inches maximum
Head Height: 0.298 inches minimum and 0.328 inches maximum
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Material: steel corrosion resisting overall
Thread Series Designator: unc

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
173040-7	Thumbscrew
5611699	Thumbscrew
7100-SS-0	Thumbscrew

FAQs

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

What is the FSCG of the NSN 5305-01-318-8249?

The FSCG of the NSN 5305-01-318-8249 is 5305

Does the NSN 5305-01-318-8249 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-318-8249 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 5305-01-318-8249 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-318-8249 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 5305-01-318-8249 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Thu, Apr 26, 1990