Model: ZP21551-2

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Lubrication
Dry film lubricant
Nut Style
Plate (floating)
Nut Length
0.572 inches
Nut Height
Between 0.220 inches and 0.270 inches
Plate Thickness
0.068 inches
Plate Width
0.390 inches
End Application
Lamps mark iii, sh-60b helicopter, control panel
Thread Series
Unjc
Thready Qty Per Inch (tpi)
32
Thread Size
0.190 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 1050 nut
Material
Steel comp 304 base or steel comp 305 base
Material Specification
Ams5085 assn standard single material response nut
Material Specification
Ams5639 assn standard 1st material response base or ams5514 assn standard 2nd material response base
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, typeii, class2 federal specification single treatment response
NSN
5310-01-485-3644
Part Number
ZP21551-2
Description
Nut,self-locking,plate
CAGE
98376

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

Part ZP21551-2 NSN 5310-01-485-3644

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05280
FIIG:
A021A0
Concept No.:
1
App. Key:
BZ
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
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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