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MS51963-38

View detailed technical data, stock status, and sourcing information for: MS51963-38

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MS51963-38
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-723-9404
Item Name Code
06672
Assigment Date
01/01/1960 (66 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

headless (setscrew) head style, right-hand thread direction, 0.438 inches maximum thread length, 3a thread class, 0.438 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
0.438 inches maximum
Fastener Length
0.438 inches nominal
Head Style
headless (setscrew)
Point Style
cup
Internal Drive Style
hexagon
Nominal Thread Diameter
0.164 inches
Width Across Flats
0.078 inches nominal
Thread Quantity Per Inch
32
Hardness Rating
45.0 rockwell c minimum and 53.0 rockwell c maximum overall
Material
steel comp 4032 overall
Material Document And Classification
66 fed std all material responses overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416 ty 2 cl 3 fed spec single treatment response overall
Thread Series Designator
unc
Nondefinitive Spec/Std Data
1 type and 4 style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-014-0857 No Name Available 11/01/1980
5305-00-019-2092 No Name Available 02/01/1980

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
MS51055&38 Setscrew
MS51963-38 Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-723-9404?
The FSCG of the NSN 5305-00-723-9404 is 5305
Does the NSN 5305-00-723-9404 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-723-9404 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 5305-00-723-9404 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-723-9404 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 5305-00-723-9404 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960

Professional Distribution

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