91251A680

View detailed technical data, stock status, and sourcing information for: 91251A680
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-618-3024

Item Name Code

16282

Assigment Date

04/19/2013 (13 years ago)

An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a pipe or pipe fitting to a boss or boss fitting in a straight line on items such as tanks, housing, valve fittings, or the like. See also adapter bushing and coupling, pipe.

fillister head style, 3a thread class, right-hand thread direction, 1.375 inches minimum and 2.172 inches maximum thread length, 2.75 inches nominal fastener length

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 1.375 inches minimum and 2.172 inches maximum
Fastener Length: 2.75 inches nominal
Head Style: fillister
Head Diameter: 0.6563 inches nominal
Head Height: 0.4375 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.4375 inches
Width Across Flats: 0.375 inches nominal
Thread Quantity Per Inch: 14
Color: black overall
Material: steel overall
Surface Treatment: oxide 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
360-0744-61-0010	Socket Head Cap Screw
91251A680	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-618-3024?

The FSCG of the NSN 5305-01-618-3024 is 5305

Does the NSN 5305-01-618-3024 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-618-3024 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 5305-01-618-3024 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-618-3024 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 5305-01-618-3024 was assigned to the Federal Catalog?

It was assigned 13 years ago, on Fri, Apr 19, 2013