Model: 478253

Setscrew

Special Features:

Counterbore hole 0.625 in. Nom lg; 0.359 in. Nom diameter and 0.250 in dia

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.389 inches and 0.500 inches
Fastener Length
0.500 inches
Head Style
Headless (setscrew)
Point Style
Flat
Internal Drive Style
Slot
Thread Diameter
0.625 inches
Thready Qty Per Inch (tpi)
18
Material
Aluminum alloy 6061 or aluminum alloy 1100
Material Specification
Qq-a-225/1 temp t6 federal specification 1st material response
Surface Treatment
Chromate
Surface Treatment Specification
Mil-c-81706 cl 1a military specification single treatment response
Thread Series Designator
Unc
NSN
5305-01-266-7790
Part Number
478253
Description
Setscrew
CAGE

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 478253 NSN 5305-01-266-7790

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
013680
UFC:
05760
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7616106000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Threaded fasteners of aluminum

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