Model: A51B52591-411

Rectangular Plain Nut

Special Features:

One end chamfered 0.040 in. X 45 degrees both surfaces and one corner of opposite end chamfered 0.160 in. X 45 deg

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Plain, rectangular

Nut Length

0.540 inches

Nut Height

0.125 inches

Nut Width

0.420 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Material

Steel comp 4130

Material Specification

Mil-s-18729 military specification single material response

NSN

5310-01-092-0996

Part Number

A51B52591-411

Description

Nut,plain,rectangular

CAGE

1BX88

A nut, flat on top and bottom, having four flat sides of which two parallel sides are shorter than the other two. For items having a thickness (or height) exceeding two times the width, use post, electrical-mechanical equipment. (when height or thickness and/or width is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part A51B52591-411 NSN 5310-01-092-0996

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15890

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:

0.1000lbs

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