Model: 588-7666739 ITEM 33

Hexagon Self-locking Nut

Special Features:

(mod) 588-7666739 note: 1221 contains the hazardous material chromium metal and/or compounds

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Nut Style
Hexagon
Nut Height
Between 0.318 inches and 0.469 inches
End Application
Doors, aircraft, elevator
Width Across Flats
Between 0.553 inches and 0.564 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unc
Thready Qty Per Inch (tpi)
16
Thread Size
0.375 inches
Bearing Surface Type
Chamfered or washer faced
Part Name Assigned By Controlling Agency
Nut, hex, slflkg (ms17829z6 (mod)
Material
Plastic polyamide locking insert
Material
Steel comp 1137 nut
Material Specification
66 federal standard all material responses nut
Surface Treatment
Zinc except insert
NSN
5310-01-646-3725
Part Number
588-7666739 ITEM 33
Description
Nut,self-locking,hexagon
CAGE
53711

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 588-7666739 ITEM 33 NSN 5310-01-646-3725

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
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

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