ST3M557-4-7

View detailed technical data, stock status, and sourcing information for: ST3M557-4-7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-587-3954

Item Name Code

29294

Assigment Date

08/05/2010 (16 years ago)

The component part of a starter, engine, electrical which transforms electrical energy into mechanical energy. It is specifically designed to energize an internal combustion engine starter.

0.906 inches nominal fastener length, 3a thread class, right-hand thread direction, flat countersunk head style, 0.469 inches nominal thread 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: 0.469 inches nominal
Fastener Length: 0.906 inches nominal
Head Style: flat countersunk
Head Diameter: 0.389 inches minimum and 0.395 inches maximum
Grip Diameter: 0.249 inches nominal
Internal Drive Style: torque
End Item Identification: c-5 aircraft
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.437 inches nominal
Thread Quantity Per Inch: 28
Countersink Angle: 100.0 degrees nominal
Material: nickel alloy 718 overall
Material Document And Classification: ams5662 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
11923-4-7	Close Tolerance Screw
HT4027-4-7	Close Tolerance Screw
ST3M557-4-7	Close Tolerance Screw
WC4027-4-7	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-587-3954?

The FSCG of the NSN 5305-01-587-3954 is 5305

Does the NSN 5305-01-587-3954 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-587-3954 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 5305-01-587-3954 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-587-3954 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 5305-01-587-3954 was assigned to the Federal Catalog?

It was assigned 16 years ago, on Thu, Aug 5, 2010