Model: HK51693-3

Single Ball Sea Self-locking Nut

Special Features:

Self-aligning washer included

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

Between 0.323 inches and 0.333 inches

Lubrication

Dry film lubricant

Overall Height

Between 0.176 inches and 0.186 inches

Ball Seat Radius

Between 0.235 inches and 0.245 inches

Washer Thickness

0.025 inches

Width Across Flats

Between 0.243 inches and 0.251 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

45.0 rockwell c

Thread Size

0.190 inches

Material

Steel comp 8740 or steel comp 4340

Material Specification

Mil-s-6049 military specification 1st material response or mil-s-5000 military specification 1st material response or ams6322 assn standard 2nd material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 federal specification single treatment response

NSN

5310-01-340-8588

Part Number

HK51693-3

Description

Nut,self-locking,single Ball Sea

CAGE

15653

A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.

Part HK51693-3 NSN 5310-01-340-8588

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29732

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

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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