0.62511UNC2A1.75T1G500SEA

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-500-8993

Item Name Code

18257

Assigment Date

09/16/2002 (23 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

right-hand thread direction, 2a thread class, 1.750 inches nominal fastener length, hexagon head style, hardware end item identification

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
Fastener Length: 1.750 inches nominal
Head Style: hexagon
End Item Identification: hardware
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 11
Material: nickel alloy overall
Material Document And Classification: qq-n-286 fed spec single material response 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
0.62511UNC2A1.7 50T1G500SEA	Hexagon Head Cap Screw
0.62511UNC2A1.75T1G500SEA	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-500-8993?

The FSCG of the NSN 5305-01-500-8993 is 5305

Does the NSN 5305-01-500-8993 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-500-8993 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 5305-01-500-8993 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-500-8993 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 5305-01-500-8993 was assigned to the Federal Catalog?

It was assigned 23 years ago, on Mon, Sep 16, 2002