Model: 1-020-181-01

Round Plain Nut

Properties:

Thread Pitch Diameters
+3.8639/+3.8713 inches
Thread Direction
Right-hand
Drive Point Depth
Between 0.065 inches and 0.070 inches
Nut Style
Round
Nut Diameter
Between 4.220 inches and 4.230 inches
Nut Thickness
Between 0.240 inches and 0.260 inches
Drive Point Width
0.180 mils and 0.200 centimeters
Drive Point Quantity
8
Thread Series
Uns
Thready Qty Per Inch (tpi)
12
Hardness Rating
Between 26.0 rockwell c and 32.0 rockwell c
Thread Size
3.918 inches
Material
Steel comp 4140
Material Specification
Ams 6381 assn standard single material response
Surface Treatment
Phosphate
Surface Treatment Specification
Ams 2481 assn standard single treatment response
NSN
5310-00-421-1817
Part Number
1-020-181-01
Description
Nut,plain,round
CAGE
99193

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 1-020-181-01 NSN 5310-00-421-1817

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15887
FIIG:
A021A0
Concept No.:
1
App. Key:
AY
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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