J149P16

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-173-7557

Item Name Code

29730

Assigment Date

02/16/1973 (53 years ago)

A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.

0.410 inches minimum and 0.430 inches maximum washer outside diameter, dry film lubricant lubrication, prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class

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 all metal design
Washer Outside Diameter: 0.410 inches minimum and 0.430 inches maximum
Lubrication: dry film lubricant
Overall Height: 0.205 inches minimum and 0.219 inches maximum
Nut Style: hexagon
Washer Thickness: 0.040 inches minimum
Width Across Flats: 0.305 inches minimum and 0.313 inches maximum
Thread Series: unjf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: iron alloy 660 overall
Material Document And Classification: ams 5735 assn std single material response or ams 5737 assn std single material response overall

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
H49480-4	Extended Washer Self-Locking Nut
J149P16	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-173-7557?

The FSCG of the NSN 5310-00-173-7557 is 5310

Does the NSN 5310-00-173-7557 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-173-7557 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 5310-00-173-7557 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-173-7557 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 5310-00-173-7557 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Fri, Feb 16, 1973