Model: BH190-4

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

Between 0.418 inches and 0.422 inches

Counterbore Diameter

0.284 inches nut and 0.288 inches nut

Lubrication

Dry film lubricant

Overall Height

0.340 inches

Nut Style

Hexagon

Nut Counterbore Depth

0.107 inches nut and 0.117 inches nut

Width Across Flats

Between 0.305 inches and 0.313 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Material

Aluminum alloy 7075

Material Specification

Qq-a-225/9, temper t73 federal specification single material response or qq-b-430, temper t73 federal specification single material response

Surface Treatment

Anodize

Surface Treatment Specification

Mil-a-8625, type 2, cl 2 military specification single treatment response

NSN

5310-01-112-1569

Part Number

BH190-4

Description

Nut,self-locking,extended Washer

CAGE

27238

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part BH190-4 NSN 5310-01-112-1569

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29730

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:

013540

UFC:

05680

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7616995095
SITC: 69979
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Articles of aluminum nesoi