52NA21-12-070

View detailed technical data, stock status, and sourcing information for: 52NA21-12-070
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-576-5759

Item Name Code

05280

Assigment Date

01/01/1963 (63 years ago)

prevailing torque with nonmetallic insert locking feature, 3b thread class, plate nut style, 0.130 inches minimum and 0.135 inches maximum mounting hole diameter, right-hand thread direction

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque with nonmetallic insert
Mounting Hole Diameter: 0.130 inches minimum and 0.135 inches maximum
Nut Style: plate
Nut Length: 1.406 inches nominal
Nut Height: 0.453 inches nominal
Plate Thickness: 0.037 inches minimum and 0.047 inches maximum
Plate Width: 0.906 inches nominal
Nut Mounting Provision: straight holes
Mounting Hole Arrangement Style: 2 holes
Distance From Aperture Center To Mounting Hole Center: 0.562 inches nominal
Center To Center Distance Between Mounting Holes Along Length: 1.123 inches minimum and 1.127 inches maximum
Thread Series: unf
Features Provided: floating nut
Thread Quantity Per Inch: 20
Nominal Thread Size: 0.438 inches
Material: plastic polyamide (nylon) locking insert
Material: steel comp 1137 nut
Material: steel comp 4130 shell
Material Document And Classification: mil-s-866 mil spec single material response nut
Surface Treatment: cadmium or zinc and chromate shell
Surface Treatment: cadmium or zinc and chromate nut
Surface Treatment Document And Classification: qq-p-416,type 1,class 3 fed spec 1st treatment response or qq-z-325,type 2,class 3 fed spec 2nd treatment response nut
Surface Treatment Document And Classification: qq-p-416,type 1,class 3 fed spec 1st treatment response or qq-z-325,type 2,class 3 fed spec 2nd treatment response shell

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-208-2354	No Name Available	04/11/1966
5310-00-603-0421	No Name Available	03/30/1966
5310-00-638-7978	No Name Available	03/30/1966

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
52A21-12-070	Plate Self-Locking Nut
52NA21-12-070	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-576-5759?

The FSCG of the NSN 5310-00-576-5759 is 5310

Does the NSN 5310-00-576-5759 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-576-5759 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 5310-00-576-5759 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-576-5759 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 5310-00-576-5759 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963