5305-01-266-8375

Find complete technical information, availability, and procurement data for: 5305-01-266-8375
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-266-8375

Item Name Code

18257

Assigment Date

10/31/1987 (38 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

1.500 inches minimum and 1.750 inches maximum thread length, hexagon head style, right-hand thread direction, 1.750 inches nominal fastener length, 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: 1.500 inches minimum and 1.750 inches maximum
Fastener Length: 1.750 inches nominal
Head Style: hexagon
Head Height: 0.591 inches minimum and 0.672 inches maximum
Width Between Flats: 1.469 inches minimum and 1.500 inches maximum
Nominal Thread Diameter: 1.000 inches
Thread Quantity Per Inch: 8
Material: steel overall
Material Document And Classification: sae grade 8 assn std single material response overall
Surface Treatment: phosphate 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
23719R1	Hexagon Head Cap Screw
26719R1	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-266-8375?

The FSCG of the NSN 5305-01-266-8375 is 5305

Does the NSN 5305-01-266-8375 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-266-8375 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 5305-01-266-8375 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-266-8375 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 5305-01-266-8375 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Oct 31, 1987