Model: 373678

Extended Washer Self-locking Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
Between 1.270 inches and 1.280 inches
Overall Height
Between 0.490 inches and 0.510 inches
Nut Style
Hexagon
Washer Thickness
Between 0.090 inches and 0.110 inches
Width Across Flats
Between 1.115 inches and 1.125 inches
Thread Series
Unef
Features Provided
Casehardened
Thready Qty Per Inch (tpi)
20
Hardness Rating
Between 34.0 rockwell c and 38.0 rockwell c
Thread Size
0.938 inches
Countersink Angle
88.0 degrees nut and 92.0 degrees nut
Material
Steel comp 4340
Material Specification
Aisi assn standard single material response
NSN
5310-00-652-3406
Part Number
373678
Description
Nut,self-locking,extended Washer
CAGE
99193

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part 373678 NSN 5310-00-652-3406

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29730
FIIG:
A021A0
Concept No.:
1
App. Key:
BT
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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