MS51031-130

View detailed technical data, stock status, and sourcing information for: MS51031-130
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-186-7140

Item Name Code

06672

Assigment Date

08/13/1984 (42 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

right-hand thread direction, headless (setscrew) head style, 3a thread class, patch or pellet or strip threads locking feature, 0.730 inches minimum and 0.770 inches maximum 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
Fastener Length: 0.730 inches minimum and 0.770 inches maximum
Head Style: headless (setscrew)
Locking Feature: patch or pellet or strip threads
Point Style: flat
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.156 inches nominal
Thread Quantity Per Inch: 24
Hardness Rating: 35.0 rockwell c minimum and 45.0 rockwell c maximum overall
Material: steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 1 type and 1 style

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
MS51031-130	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-186-7140?

The FSCG of the NSN 5305-01-186-7140 is 5305

Does the NSN 5305-01-186-7140 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-186-7140 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 5305-01-186-7140 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-186-7140 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 5305-01-186-7140 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, Aug 13, 1984