Model: 16990-5F-40C

Socket Head Cap Screw

Special Features:

5/16 inch cadmium plate-silver, hex flat head cap screw

Properties:

Thread Direction
Right-hand
Fastener Length
2.500 inches
Internal Drive Style
Hexagon
Thread Diameter
0.312 inches
Width Across Flats
0.187 inches
Thready Qty Per Inch (tpi)
24
Material
Steel
Thread Series Designator
Unc
NSN
5305-01-566-4952
Part Number
16990-5F-40C
Description
Screw,cap,socket Head
CAGE
56878

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 16990-5F-40C NSN 5305-01-566-4952

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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