853921

View detailed technical data, stock status, and sourcing information for: 853921
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-902-6676

Item Name Code

05277

Assigment Date

01/01/1960 (66 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.

soluble lubricant lubrication, right-hand thread direction, prevailing torque with nonmetallic insert locking feature, 3b thread class, hexagon nut style

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
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.188 inches maximum
End Item Identification: multiple launch rocket system (mlrs); a4 bradley fighting vehicle; a3 bradley fighting vehicle; high-mobility artillery rocket system (himars)
Width Across Flats: 0.367 inches minimum and 0.376 inches maximum
Temp Rating: 230.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 32
Hardness Rating: 35.0 rockwell c maximum
Nominal Thread Size: 0.190 inches
Countersink Angle: 88.0 degrees minimum nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: plastic polyamide (nylon) locking insert
Material: steel nut
Surface Treatment: cadmium and chromate overall except insert
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec all treatment responses overall except insert

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-058-7433	No Name Available	07/01/1999
5310-00-275-2028	No Name Available	07/01/1980
5310-00-366-3241	No Name Available	08/17/1970
5310-00-483-7176	No Name Available	07/08/1970
5310-00-498-0786	No Name Available	08/17/1970
5310-00-570-5959	No Name Available	01/05/1970
5310-00-596-7957	No Name Available	06/01/2002
5815-00-600-2867	No Name Available	08/29/1969
5310-00-815-4933	No Name Available	02/12/1968
5310-00-930-4200	No Name Available	08/24/1970
5310-01-415-8853	No Name Available	01/01/1999

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
10082640	Hexagon Self-Locking Nut
145-4510955-65	Hexagon Self-Locking Nut
22TM02	Hexagon Self-Locking Nut
3255255	Hexagon Self-Locking Nut
404979	Hexagon Self-Locking Nut
5310009026676	Hexagon Self-Locking Nut
5310PL0150158	Hexagon Self-Locking Nut
5310PL1369992	Hexagon Self-Locking Nut
802823-00	Hexagon Self-Locking Nut
853921	Hexagon Self-Locking Nut
853921-00	Hexagon Self-Locking Nut
AE27-12	Hexagon Self-Locking Nut
MS1083-N3	Hexagon Self-Locking Nut
MS20364-1032A	Hexagon Self-Locking Nut
SM-A-701372-2	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-902-6676?

The FSCG of the NSN 5310-00-902-6676 is 5310

Does the NSN 5310-00-902-6676 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-902-6676 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 5310-00-902-6676 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-902-6676 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 5310-00-902-6676 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960