Model: 219431

Hexagon Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.320 inches and 0.336 inches
Width Across Flats
Between 0.4890 inches and 0.5000 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
18
Thread Size
0.312 inches
Bearing Surface Type
Chamfered or washer faced
Material
Steel
Surface Treatment
Cadmium or zinc
Nondefinitive Specification/std Data
A type
Departure From Cited Document
As modified by height rqmt
NSN
5310-00-021-9431
Part Number
219431
Description
Nut,plain,hexagon
CAGE
7X677

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 219431 NSN 5310-00-021-9431

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01857
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
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:
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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