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56821P012

View detailed technical data, stock status, and sourcing information for: 56821P012

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56821P012
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5307 Studs
National Stock Number
5307-00-145-4839
Item Name Code
15949
Assigment Date
01/01/1963 (63 years ago)

A headless fastener not exceeding 12 inches (304.8 mm) in length, threaded externally on both ends on which the nominal diameter of one threaded section is greater than the other. The entire unthreaded portion must be of a single diameter equal to or smaller than the maximum major diameter of the larger threaded end. Includes radial grooves or thread reliefs. Excludes:items with tapered threads.

+0.4682 to 0.4697 inches stud thread thread pitch diameters, right-hand stud thread thread direction, 3a nut thread thread class, right-hand nut thread thread direction, 0.680 inches minimum nut thread 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 nut thread
Thread Pitch Diameters
+0.4682 to 0.4697 inches stud thread
Thread Direction
right-hand nut thread
Thread Direction
right-hand stud thread
Thread Length
0.680 inches minimum nut thread
Thread Length
0.770 inches minimum stud thread
Shank Diameter
0.358 inches minimum and 0.368 inches maximum
Overall Length
1.800 inches nominal
Thread Quantity Per Inch
13 stud thread
Thread Quantity Per Inch
20 nut thread
Nominal Thread Size
0.438 inches nut thread
Nominal Thread Size
0.500 inches stud thread
Material
steel comp 4640 or steel comp 6150
Material Document And Classification
ams 6312 assn std 1st material response or ams 6448 assn std 2nd material response
Surface Treatment
cadmium overall
Surface Treatment Document And Classification
ams 2400-3 assn std single treatment response overall
Style Designator
stepped
Thread Series Designator
unf nut thread
Thread Series Designator
uns stud thread

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5307-00-533-8559 No Name Available 01/01/1963

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
56821P012 Stepped Stud
56821P12 Stepped Stud

FAQs

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

What is the FSCG of the NSN 5307-00-145-4839?
The FSCG of the NSN 5307-00-145-4839 is 5307
Does NSN 5307-00-145-4839 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 5307-00-145-4839 contain precious materials?
Precious metal content is unknown
Does NSN 5307-00-145-4839 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 5307-00-145-4839 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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