Model: 267KC21

Round Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Small End Diameter

Between 3.720 inches and 3.780 inches

Drive Point Depth

Between 0.220 inches and 0.280 inches

Nut Style

Round

Nut Diameter

Between 4.090 inches and 4.150 inches

Nut Thickness

Between 1.730 inches and 1.738 inches

Drive Point Width

0.470 mils and 0.530 centimeters

Undercut Thickness

1.672 inches

Drive Point Quantity

Thread Series

Unc

Features Provided

Casehardened

Thready Qty Per Inch (tpi)

Hardness Rating

Between 80.0 rockwell a and 83.0 rockwell a

Thread Size

0.312 inches

Material

Steel comp 4620h or steel comp 8620

Material Specification

Astm a304 assn standard 1st material response or astm a322 assn standard 2nd material response

NSN

5310-00-695-7268

Part Number

267KC21

Description

Nut,plain,round

CAGE

89619

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 267KC21 NSN 5310-00-695-7268

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:

2.6000lbs

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