5310-00-997-1887

Find complete technical information, availability, and procurement data for: 5310-00-997-1887
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-997-1887

Item Name Code

05277

Assigment Date

04/13/1967 (59 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.)

0.328 inches nominal nut height, prevailing torque with nonmetallic insert locking feature, right-hand thread direction, 2b 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: 2b
Thread Direction: right-hand
Locking Feature: prevailing torque with nonmetallic insert
Nut Style: hexagon
Nut Height: 0.328 inches nominal
Width Across Flats: 0.492 inches minimum and 0.502 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.375 inches
Bearing Surface Type: chamfered
Material: plastic polyamide (nylon) or steel comp 303 overall
Material Document And Classification: qq-s-764 fed std single material response overall
Surface Treatment: passivate overall except insert

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
117488-1	Hexagon Self-Locking Nut
SMB619890	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-997-1887?

The FSCG of the NSN 5310-00-997-1887 is 5310

Does the NSN 5310-00-997-1887 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-997-1887 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 5310-00-997-1887 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-997-1887 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 5310-00-997-1887 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Thu, Apr 13, 1967