Model: 2178494B-0029

Socket Head Cap Screw

Special Features:

Self locking

Properties:

Fastener Length
0.500 inches
Head Style
Truss
End Application
4 inch ball valve, straight line, naval ship systems command
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Material
Steel comp 304
Material Specification
Qq-s-763 federal standard single material response or ffs092, ty1, s type 6 military specification single material response
Thread Series Designator
Unc
NSN
5305-01-487-5845
Part Number
2178494B-0029
Description
Screw,cap,socket Head
CAGE
96169

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part 2178494B-0029 NSN 5305-01-487-5845

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
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:
A
ESD:
A
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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