Model: 525-0004-01

Setscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.271 inches
Fastener Length
Between 0.365 inches and 0.385 inches
Head Style
Headless (setscrew)
Spline Minor Diameter
Between 0.078 inches and 0.079 inches
Spline Major Diameter
Between 0.055 inches and 0.056 inches
Spline Width
Between 0.022 inches and 0.023 inches
Locking Feature
Patch threads
Point Style
Cone
Internal Drive Style
Four spline
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
45.0 rockwell c and 53.0 rockwell c
Material
Steel comp 4032 or steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740
Material Specification
Aisi assn standard all material responses or 66 federal standard all material responses
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification all treatment responses
Supplementary Features
Patch lock conforms to mil-f-18240 config d
Thread Series Designator
Unc
Specification Data
08935-525-0004-01/inactive/ manufacturers specification control
NSN
5305-01-269-7819
Part Number
525-0004-01
Description
Setscrew
CAGE
08935

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part 525-0004-01 NSN 5305-01-269-7819

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06672
FIIG:
A003B0
Concept No.:
App. Key:
SQ
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: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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