Model: 79-1660-440

Cap Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Nut Style
Cap
Nut Height
0.110 inches
Width Across Flats
Between 0.181 inches and 0.190 inches
Tempurature Rating
Between -57.0 degrees celsius and 121.0 degrees celsius
Thread Series
Unc
Thready Qty Per Inch (tpi)
40
Thread Size
0.112 inches
Bearing Surface Type
Flat
Material
Plastic polyamide locking insert
Material
Steel comp 303 except insert
Material Specification
Mil-p-17091 military specification single material response locking insert
Material Specification
Qq-s-763, cond a federal specification single material response except insert
Surface Treatment
Passivate except insert
Surface Treatment Specification
Qq-p-35 federal specification single treatment response except insert
Specification Data
10001-2558101 manufacturers specification control
NSN
5310-00-052-6741
Part Number
79-1660-440
Description
Nut,self-locking,cap
CAGE
15653

A nut internally threaded from one end, and completely enclosed on the opposite end. The outer periphery parallel to the threaded axis may be square, cylindrical, hexagonal, octagonal, dodecagonal or the like and taper to a cone or dome shape on the closed end. An integral feature is incorporated for locking on the threads of a mating memeber. Excludes nut (1), stamped.

Part 79-1660-440 NSN 5310-00-052-6741

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05275
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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