NAS1831-4C05

View detailed technical data, stock status, and sourcing information for: NAS1831-4C05
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-283-3507

Item Name Code

40280

Assigment Date

08/03/1988 (37 years ago)

3b right internal thread class, right-hand right internal thread direction, 0.308 inches minimum and 0.318 inches maximum cross-sectional length, hexagon cross-sectional shape, 0.309 inches minimum and 0.317 inches maximum width across flats

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 right internal
Thread Direction: right-hand right internal
Cross-Sectional Length: 0.308 inches minimum and 0.318 inches maximum
Cross-Sectional Shape: hexagon
Width Across Flats: 0.309 inches minimum and 0.317 inches maximum
Thread Quantity Per Inch: 32 right internal
Nominal Thread Size: 0.138 inches right internal
Part Name Assigned By Controlling Agency: navy special project
Special Features: material: steel comp 4130 or steel comp 8630 or steel comp 8740 overall;surface treatment: cadmium and chromate overall;material document and classification: mil-s-6758,cond f mil spec 1st material response or mil-s-6050,cond f mil spec 2nd material response or mil-s-6049,cond f mil spec 3rd material response overall;surface treatment document and classification: qq-p-416,ty 2,cl 2 fed spec single treatment response overall;bearing surface type: chamfered
Thread Series Designator: unc left internal (includes thru thread)
Specification/Standard Data: 80205-nas1831 professional/industrial association standard

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
NAS1831-4C05	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-283-3507?

The FSCG of the NSN 5340-01-283-3507 is 5340

Does NSN 5340-01-283-3507 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 5340-01-283-3507 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-283-3507 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 5340-01-283-3507 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Wed, Aug 3, 1988