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40398-4 FIND NO 25 Hexagon Plain Nut

5310-01-377-7320

Specifications, compliance details, and sourcing options for this NSN. Request a quote to confirm availability, pricing, and lead time.

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Official Item Classification

Name
Hexagon Plain Nut
Part Number
40398-4 FIND NO 25
(NSN) National Stock Number
5310-01-377-7320
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
01857
(FIIG) Federal Item Identification Guide
A021A0
Date
07/23/1993 (33 years ago)

0.258 inches minimum and 0.273 inches maximum nut height, right-hand thread direction, valve end item identification, hexagon nut style, 2b thread class

Specs & Compatibility

Thread Class

2b

Thread Direction

right-hand

Nut Style

hexagon

Nut Height

0.258 inches minimum and 0.273 inches maximum

End Item Identification

valve

Width Across Flats

0.489 inches minimum and 0.500 inches maximum

Temp Rating

1000.0 fahrenheit nominal

Thread Series

unc

Thread Quantity Per Inch

18

Hardness Rating

65.0 rockwell b minimum and 95.0 rockwell b maximum

Nominal Thread Size

0.312 inches

Bearing Surface Type

chamfered

Special Features

data export prohibited

Material

steel comp 304 overall

Material Document And Classification

astm f 594 assn std single material response overall

Nondefinitive Spec/Std Data

1 type

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0001857

Related Hardware Products

Part Number Description
164-19 Hexagon Plain Nut
40398-4 FIND NO 25 Hexagon Plain Nut
40444-4 FIND NO 25 Hexagon Plain Nut
40490-9 FIND NO 25 Hexagon Plain Nut
40506-4 FIND NO 25 Hexagon Plain Nut
40506-9 ITEM 25 Hexagon Plain Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-01-377-7320?
The FSCG of the NSN 5310-01-377-7320 is 5310
Does the NSN 5310-01-377-7320 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-377-7320 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 5310-01-377-7320 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-377-7320 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 5310-01-377-7320 was assigned to the Federal Catalog?
It was assigned 33 years ago, on Fri, Jul 23, 1993