Model: NAS1493-18

Round Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Small End Diameter
Between 3.788 inches and 3.793 inches
Drive Point Depth
Between 0.050 inches and 0.060 inches
Nut Style
Round
Nut Diameter
Between 3.875 inches and 3.885 inches
Nut Thickness
Between 0.375 inches and 0.380 inches
Drive Point Width
Between 0.375 inches and 0.385 inches
Undercut Thickness
Between 0.100 inches and 0.105 inches
Drive Point Quantity
8
Thread Series
Uns
Thready Qty Per Inch (tpi)
12
Hardness Rating
Between 26.0 rockwell c and 33.0 rockwell c
Thread Size
3.340 inches
Countersink Angle
90.0 degrees nut
Bearing Surface Finish
125.0 microinches
Material
Steel comp 4130
Material Specification
Mil-s-6758, cond d military specification single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Specification Data
80205-nas1493 professional/industrial association standard
NSN
5310-01-127-0885
Part Number
NAS1493-18
Description
Nut,self-locking,round
CAGE
80205

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

Part NAS1493-18 NSN 5310-01-127-0885

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15895
FIIG:
A021A0
Concept No.:
1
App. Key:
CA
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

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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