Model: Z7637-6

Hex Castellated Self-locking Nut

Special Features:

Dyed purple for identification

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Castellated, hexagon
Nut Height
Between 0.270 inches and 0.282 inches
Width Across Flats
Between 0.553 inches and 0.564 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
24
Thread Size
0.375 inches
Bearing Surface Type
Chamfered
Material
Steel
Material Specification
Mil-n-25027 military specification single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 1, class 3 federal specification single treatment response
NSN
5310-01-147-6085
Part Number
Z7637-6
Description
Nut,self-locking,castellated,hex
CAGE
019L2

A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. An integral feature is incorporated for locking on the threads of a mating member. The slots when used in conjunction with a solid or split (cotter) pin, act as an extra "fail safe" feature in critical applications. Excludes nut (1), self-locking, slotted, hexagon.

Part Z7637-6 NSN 5310-01-147-6085

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29725
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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

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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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