LL57J26P8M

View detailed technical data, stock status, and sourcing information for: LL57J26P8M
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-255-2674

Item Name Code

16282

Assigment Date

05/17/1987 (39 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

0.480 inches minimum and 0.500 inches maximum fastener length, 0.393 inches minimum and 0.449 inches maximum thread length, right-hand thread direction, flat countersunk 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: 0.393 inches minimum and 0.449 inches maximum
Fastener Length: 0.480 inches minimum and 0.500 inches maximum
Head Style: flat countersunk
Head Diameter: 0.147 inches minimum and 0.172 inches maximum
Locking Feature: strip threads
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 56
Countersink Angle: 82.0 degrees nominal
Material: steel corrosion resisting overall
Surface Treatment: passivate 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
LL57J26P8M	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-255-2674?

The FSCG of the NSN 5305-01-255-2674 is 5305

Does the NSN 5305-01-255-2674 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-255-2674 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 5305-01-255-2674 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-255-2674 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 5305-01-255-2674 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sun, May 17, 1987