5310-01-212-9719

Find complete technical information, availability, and procurement data for: 5310-01-212-9719
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-212-9719

Item Name Code

05277

Assigment Date

07/20/1985 (41 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

hexagon nut style, 3b thread class, prevailing torque with nonmetallic insert locking feature, right-hand thread direction, 0.240 inches minimum and 0.360 inches maximum nut height

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
Nut Style: hexagon
Nut Height: 0.240 inches minimum and 0.360 inches maximum
Width Across Flats: 0.430 inches minimum and 0.439 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 20
Hardness Rating: 26.0 rockwell c minimum and 34.0 rockwell c maximum
Nominal Thread Size: 0.250 inches
Criticality Code Justification: zzzy
Special Features: for additional description and information concerning this item,refer to spccinst 4440.376 series,chapter 9
Material: steel comp 1137 overall except insert
Material Document And Classification: fed std-66 fed std single material response overall except insert
Surface Treatment: cadmium overall except insert
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response overall except insert
Reference Number Differentiating Characteristics: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

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
000.250-20UNC-3B, LEVEL 1	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-212-9719?

The FSCG of the NSN 5310-01-212-9719 is 5310

Does the NSN 5310-01-212-9719 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-212-9719 require demilitarization?

Usml or ccl military items - demil required. Item managers,, equipment specialists, or product specialists must furnish special demilinstructions. (note 3).

Does NSN 5310-01-212-9719 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-212-9719 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 5310-01-212-9719 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Sat, Jul 20, 1985