Model: A51B20525-1

Dodecagon Plain Nut

Description:

3b thread class, right-hand , plain, dodecagon nut style, 0.312 inches nut height, 2.062 inches width across flats, unc thread series.

Special Features:

Prevailing torque all metal design locking feature

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Plain, dodecagon

Nut Height

0.312 inches

Width Across Flats

2.062 inches

Thread Series

Unc

Thready Qty Per Inch (tpi)

Hardness Rating

Between 38.0 rockwell c and 45.0 rockwell c

Thread Size

0.562 inches

Countersink Angle

90.0 degrees nut

Bearing Surface Type

Chamfered

Bearing Surface Finish

125.0 microinches

Material

Steel comp 630

Material Specification

Ams 5643 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

NSN

5310-00-003-3887

Part Number

A51B20525-1

Description

Nut,plain,dodecagon

CAGE

61174

A nut, flat on top and bottom, having 12 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 A51B20525-1 NSN 5310-00-003-3887

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01856

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

Pricing & Availability Check

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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