A-3439

View detailed technical data, stock status, and sourcing information for: A-3439
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-149-9855

Item Name Code

01857

Assigment Date

03/28/1983 (43 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

logistics support vessel end item identification, 0.140 inches minimum and 0.150 inches maximum nut height, 3b thread class, right-hand thread direction, 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
Nut Style: hexagon
Nut Height: 0.140 inches minimum and 0.150 inches maximum
End Item Identification: logistics support vessel
Width Across Flats: 0.600 inches nominal
Thread Series: unf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.375 inches
Bearing Surface Type: flat
Material: steel comp 416 overall
Surface Treatment: cadmium overall
Supplementary Features: made from an316-6r nsn 5310-00-167-1300

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
A-3439	Hexagon Plain Nut
A3439	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-149-9855?

The FSCG of the NSN 5310-01-149-9855 is 5310

Does the NSN 5310-01-149-9855 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-149-9855 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 5310-01-149-9855 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-149-9855 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 5310-01-149-9855 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Mon, Mar 28, 1983