Model: MS21042L05

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.520 inches
Lubrication
Dry film lubricant
Overall Height
Between 0.251 inches and 0.266 inches
Nut Style
Hexagon
Washer Thickness
0.023 inches
Width Across Flats
Between 0.367 inches and 0.378 inches
Tempurature Rating
450.0 degrees fahrenheit
Thread Series
Unjf
Thready Qty Per Inch (tpi)
24
Hardness Rating
49.0 rockwell c
Thread Size
0.312 inches
Material
Steel
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
NSN
5310-01-306-3518
Part Number
MS21042L05
Description
Nut,self-locking,extended Washer
CAGE
80205

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 MS21042L05 NSN 5310-01-306-3518

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:
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:
LVL_A:
E
LVL_B:
B

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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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