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
2b
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)
2b
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.:
1
App. Key:
BT
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
713
TCC:
Z
SHC:
9
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

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