5310-01-270-1731

Find complete technical information, availability, and procurement data for: 5310-01-270-1731
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-270-1731

Item Name Code

01857

Assigment Date

12/31/1987 (38 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.)

hexagon nut style, mrap - common nsn - used on caiman plus cat i and 9 other weapon systems including 21n - nuclear reactors program end item identification, 2b thread class, right-hand thread direction, 0.427 inches minimum and 0.448 inches maximum nut height

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
Nut Style: hexagon
Nut Height: 0.427 inches minimum and 0.448 inches maximum
End Item Identification: mrap - common nsn - used on caiman plus cat i and 9 other weapon systems including 21n - nuclear reactors program
Width Across Flats: 0.736 inches minimum and 0.750 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 13
Nominal Thread Size: 0.500 inches
Criticality Code Justification: zzzw
Material: steel overall
Surface Treatment: cadmium overall
Departure From Cited Document: material will be in accordance with ships parts control center activity hx quality control,manufacturing and testing specifications

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
1F4238PC70	Hexagon Plain Nut
235R001PC34	Hexagon Plain Nut
660C1AB-3	Hexagon Plain Nut
820-2179130-85	Hexagon Plain Nut
D301231 FIND 11	Hexagon Plain Nut
D301293 FIND 13	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-270-1731?

The FSCG of the NSN 5310-01-270-1731 is 5310

Does the NSN 5310-01-270-1731 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-270-1731 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 5310-01-270-1731 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-270-1731 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 5310-01-270-1731 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Dec 31, 1987