Model: NAS1831A4C04

Hexagon Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.245 inches and 0.255 inches
Width Across Flats
Between 0.246 inches and 0.254 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
32
Thread Size
0.138 inches
Bearing Surface Type
Flat
Material
Aluminum alloy 2024 or aluminum alloy 2011
Material Specification
Qq-a-225/6, t4 federal specification 1st material response or qq-a-225/3, t4 federal specification 2nd material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 1, cl 1 military specification single treatment response or mil-a-8625, type 2, cl 1 military specification single treatment response
Specification Data
80205-nas1831 professional/industrial association standard
NSN
5310-01-266-2356
Part Number
NAS1831A4C04
Description
Nut,plain,hexagon
CAGE
80205

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 NAS1831A4C04 NSN 5310-01-266-2356

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7616106000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Threaded fasteners of aluminum

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