MS9557-28

View detailed technical data, stock status, and sourcing information for: MS9557-28
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-195-2307

Item Name Code

01847

Assigment Date

03/18/1970 (56 years ago)

double hexagon w/hole head style, 2.000 inches nominal fastener length, 0.750 inches minimum and 0.810 inches maximum thread length, right-hand thread direction, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.750 inches minimum and 0.810 inches maximum
Fastener Length: 2.000 inches nominal
Head Style: double hexagon w/hole
Head Height: 0.330 inches nominal
Width Between Flats: 0.304 inches minimum and 0.313 inches maximum
Extended Washer Diameter: 0.438 inches nominal
Extended Washer Thickness: 0.060 inches minimum and 0.070 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.190 inches minimum and 1.250 inches maximum
Features Provided: finished head
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 130000 pounds per square inch
Hardness Rating: 248.0 brinell standard minimum and 341.0 brinell standard maximum overall
Minimum Yield Strength: 85000 pounds per square inch
Surface Finish: 32.0 microinches threads
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Material: iron alloy 660 overall
Material Document And Classification: ams 5737 assn std single material response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-121-7915	No Name Available	01/01/2002

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
MS21280-28	Machine Bolt
MS9557-28	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-195-2307?

The FSCG of the NSN 5306-00-195-2307 is 5306

Does the NSN 5306-00-195-2307 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-195-2307 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 5306-00-195-2307 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-195-2307 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 5306-00-195-2307 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Mar 18, 1970