Model: 6157U-SS-2520

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.375 inches
Fastener Length
0.675 inches
Head Style
Knurled no. 4
Head Diameter
Between 0.562 inches and 0.750 inches
Head Height
0.250 inches
Point Style
Cone
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
32
Material
Stainless steel
Material Specification
Mil-w-52263c military specification single material response
Thread Series Designator
Unc
NSN
5305-01-259-1181
Part Number
6157U-SS-2520
Description
Thumbscrew
CAGE
1YGB8

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Part 6157U-SS-2520 NSN 5305-01-259-1181

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06673
FIIG:
A003B0
Concept No.:
App. Key:
SR
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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