Model: 549710

Extended Washer Self-locking Nut

Special Features:

Nut h 0.680 in. Nom, 0.340 in. Wrenching flat h w/0.623 in. Id, six equally spaced holes 0.078 in. Diameter drilled through wrenching flat sides 0.120 in. From ends

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Free-running all metal design

Washer Outside Diameter

3.740 inches

Overall Height

1.820 inches

Width Across Flats

Between 0.741 inches and 0.752 inches

Thread Series

Uns

Thready Qty Per Inch (tpi)

Hardness Rating

Between 26.0 rockwell c and 33.0 rockwell c

Thread Size

3.188 inches

Material

Steel comp 8740

Material Specification

Mil-s-6049 military specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 2 federal specification single treatment response

NSN

5310-00-799-9039

Part Number

549710

Description

Nut,self-locking,extended Washer

CAGE

73030

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 549710 NSN 5310-00-799-9039

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

50.0

WCC:

713

TCC:

SHC:

ACC:

Equipment for Aircraft

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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