NAS1251-2-6

View detailed technical data, stock status, and sourcing information for: NAS1251-2-6
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-476-7504

Item Name Code

01832

Assigment Date

06/10/1971 (55 years ago)

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes:ring, connecting, round.

right-hand thread direction, 1.007 inches nominal shank length, 3a thread class, 0.3125 inches nominal thread diameter, 0.602 inches minimum and 0.662 inches maximum 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: 0.602 inches minimum and 0.662 inches maximum
Shank Length: 1.007 inches nominal
Nominal Thread Diameter: 0.3125 inches
Thread Quantity Per Inch: 24
Material: steel comp 4140 or steel comp 4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,type 2 class 3 fed spec 1st treatment response or qq-z-325 type 2 class 3 fed spec 2nd treatment 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
NAS1251-2-6	Ring Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-476-7504?

The FSCG of the NSN 5306-00-476-7504 is 5306

Does the NSN 5306-00-476-7504 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-476-7504 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 5306-00-476-7504 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-476-7504 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 5306-00-476-7504 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Thu, Jun 10, 1971