Model: 4074840-318

Knurled Plain Nut

Special Features:

Slot cut in small end 0.046 in wide

Properties:

Thread Class
3b
Thread Direction
Right-hand
Small End Diameter
Between 3.302 inches and 3.322 inches
Nut Style
Knurled
Nut Diameter
Between 3.552 inches and 3.572 inches
Nut Thickness
Between 0.521 inches and 0.541 inches
Knurl Width
0.288 mils and 0.308 centimeters
Thread Series
Un
Thready Qty Per Inch (tpi)
16
Hardness Rating
25.0 rockwell c and 32.0 rockwell c
Thread Size
2.875 inches
Material
Steel comp 4140
Material Specification
Mil-s-5626 military specification single material response
NSN
5310-00-122-1140
Part Number
4074840-318
Description
Nut,plain,knurled
CAGE

A nut, round in shape, having all or part of its outer surface knurled. It may have provisions for external wrenching. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).

Part 4074840-318 NSN 5310-00-122-1140

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15886
FIIG:
A021A0
Concept No.:
1
App. Key:
AU
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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