Model: 290256R1

Square Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Square

Nut Height

Between 0.847 inches and 0.903 inches

Width Across Flats

Between 1.450 inches and 1.500 inches

Thread Series

Unc

Thready Qty Per Inch (tpi)

Hardness Rating

Between 25.0 rockwell c and 32.0 rockwell c

Thread Size

1.000 inches

Bearing Surface Type

Chamfered

Material

Steel comp 1045

Material Specification

Aisi assn standard single material response

Surface Treatment

Cadmium

NSN

5310-00-655-7400

Part Number

290256R1

Description

Nut,plain,square

CAGE

0SAT8

A nut, flat on top and bottom, having 4 flat sides. 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.)

Part 290256R1 NSN 5310-00-655-7400

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01858

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:

0.3000lbs

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