Model: 3860371-1

Round Plain Nut

Special Features:

First end externally chamfered on outer edge 45.0 degrees by 0.040 in. Deep; undercut radius 0.010 in. Min 0.020 in. Max; second end internal counterbore radius 0.010 in.

Properties:

Thread Pitch Diameters

+2.3112/+2.3178 inches

Thread Direction

Right-hand

Counterbore Diameter

2.350 inches second end and 2.360 inches second end

Small End Diameter

Between 2.400 inches and 2.420 inches

Drive Point Depth

0.076 inches

Nut Style

Round

Nut Diameter

Between 2.827 inches and 2.837 inches

Nut Thickness

Between 0.250 inches and 0.270 inches

Drive Point Width

Between 0.180 inches and 0.200 inches

Undercut Thickness

Between 0.090 inches and 0.110 inches

Drive Point Quantity

Nut Counterbore Depth

0.050 inches second end and 0.070 inches second end

Thread Series

Uns

Thready Qty Per Inch (tpi)

Hardness Rating

Between 28.0 rockwell c and 34.0 rockwell c

Thread Size

2.344 inches

Countersink Angle

45.0 degrees first end

Bearing Surface Finish

63.0 microinches

Material

Steel comp 4340 or steel comp e4340

Material Specification

Ams6415 assn standard 1st material response or mil-s-5000 military specification 2nd material response

Special Test Features

Magnetic particle inspect per ems52308 cl 4, fscm 99193

NSN

5310-01-206-5477

Part Number

3860371-1

Description

Nut,plain,round

CAGE

99193

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 3860371-1 NSN 5310-01-206-5477

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15887

FIIG:

A021A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel