Model: RMLH6521-108

Double Hexagon Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Any acceptable

Lubrication

Dry film lubricant

Nut Style

Double hexagon

Nut Height

Between 0.574 inches and 0.584 inches

Width Across Flats

Between 0.930 inches and 0.940 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 39.0 rockwell c and 45.0 rockwell c

Thread Size

0.625 inches

Bearing Surface Type

Chamfered

Material

Steel comp 8740

Material Specification

Ams 6322 assn standard single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

NSN

5310-00-159-6445

Part Number

RMLH6521-108

Description

Nut,self-locking,double Hexagon

CAGE

82156

A nut having 12 drive points and 24 sides. The bearing surface may be washer faced. An integral locking feature is incorporated in the design of the head or in the threads.

Part RMLH6521-108 NSN 5310-00-159-6445

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05276

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:

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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