Model: 642871

Hexagon Slotted Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Slotted, hexagon
Nut Height
Between 0.550 inches and 0.570 inches
Width Across Flats
Between 0.367 inches and 0.376 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
32
Hardness Rating
Between 28.0 rockwell c and 32.0 rockwell c
Thread Size
0.190 inches
Bearing Surface Type
Flat
Material
Steel comp 1137
Material Specification
Ams 5024 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ams 2400 assn standard single treatment response
NSN
5310-00-797-2538
Part Number
642871
Description
Nut,self-locking,slotted,hexagon
CAGE
77445

A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. An integral feature is incorporated for locking on the threads of a mating member. The slots, when used in conjunction with a solid or split (cotter) pin, act as an extra "fail safe", feature in critical applications. Excludes nut (1), self-locking, castellated, octagon.

Part 642871 NSN 5310-00-797-2538

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29733
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:
U
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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