Model: 181125-1

Hexagon Plain Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
0.125 inches
Drilled Hole Diameter
Between 0.030 inches and 0.035 inches
Hole Type And Quantity
2 drilled
Width Across Flats
Between 0.303 inches and 0.315 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
32
Hardness Rating
Between 25.0 rockwell c and 32.0 rockwell c
Thread Size
0.190 inches
Hole Configuration Style
Configuration b
Bearing Surface Type
Chamfered
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp e4340 or steel comp 4130 or steel comp 8740
Material Specification
Mil-s-5000, cond c military specification all material responses
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 2 federal specification single treatment response
NSN
5310-01-058-7081
Part Number
181125-1
Description
Nut,plain,hexagon
CAGE
71791

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 181125-1 NSN 5310-01-058-7081

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

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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