5340-01-448-3222

Find complete technical information, availability, and procurement data for: 5340-01-448-3222
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-448-3222

Item Name Code

40279

Assigment Date

08/27/1997 (28 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

2b right internal thread class, right-hand right internal thread direction, left-hand left external thread direction, 0.265 inches nominal left external thread length, 2a left external 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: 2a left external
Thread Class: 2b right internal
Thread Direction: left-hand left external
Thread Direction: right-hand right internal
Thread Length: 0.265 inches nominal left external
Width Between Flats: 0.375 inches nominal
Length: 4.000 inches nominal
Thread Quantity Per Inch: 32 left external
Thread Quantity Per Inch: 32 right internal
Nominal Thread Size: 0.138 inches right internal
Nominal Thread Size: 0.190 inches left external
Criticality Code Justification: zzzy
Right Projection Diameter: 0.190 inches nominal
Right Projection Length: 0.374 inches nominal
Right End Chamfer Angle: 25.0 degrees minimum and 35.0 degrees maximum
Projection.left Chamfer Angle: 45.0 degrees nominal
Material: steel comp 303 standoff
Material Document And Classification: stm a581 assn std single material response standoff
Surface Treatment: passivate standoff
Special Test Features: special quality control testing
Surface Treatment Document And Classification: qq-p-35,type ii fed spec single treatment response standoff
Style Designator: left internal and right external thread
Test Data Document: "81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unc right internal
Thread Series Designator: unf left external
Departure From Cited Document: as modified by material and locking feature( as applicable )
Reference Number Differentiating Characteristics: as differentiated by material which must conform to ships parts control center special quality control provisions

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
18-3137	Snap-in Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-448-3222?

The FSCG of the NSN 5340-01-448-3222 is 5340

Does NSN 5340-01-448-3222 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 5340-01-448-3222 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-448-3222 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-448-3222 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Wed, Aug 27, 1997