MS9557-16

View detailed technical data, stock status, and sourcing information for: MS9557-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-418-2316

Item Name Code

01847

Assigment Date

08/23/1995 (31 years ago)

A relatively thin metal item of various shapes, having two or more bolt holes and locking ears or tabs. The item is designed to be inserted on the bolts and the ears or tabs bent against the wrenching flat(s) of the bolt head or nut to restrict loosening of the bolt or nut. The locking ears or tabs may be prebent. See also retainer, nut and bolt.

0.750 inches minimum and 0.810 inches maximum thread length, right-hand thread direction, double hexagon w/hole head style, 3a thread class, 1.125 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: 0.750 inches minimum and 0.810 inches maximum
Fastener Length: 1.125 inches nominal
Head Style: double hexagon w/hole
Head Height: 0.300 inches nominal
Width Between Flats: 0.313 inches nominal
Extended Washer Diameter: 0.438 inches nominal
Extended Washer Thickness: 0.065 inches nominal
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.315 inches minimum and 0.375 inches maximum
Features Provided: finished head
Thread Quantity Per Inch: 28
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response overall
Thread Series Designator: unjf

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
MS9557-16	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-418-2316?

The FSCG of the NSN 5306-01-418-2316 is 5306

Does the NSN 5306-01-418-2316 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-418-2316 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 5306-01-418-2316 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-418-2316 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 5306-01-418-2316 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Aug 23, 1995