Model: 16990-94C-4P3A

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.724 inches

Fastener Length

0.875 inches

Head Style

Flat countersunk

Head Diameter

0.082 inches

Internal Drive Style

Hexagon

Thread Diameter

0.112 inches

Width Across Flats

0.625 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

80000 pounds per square inch

Hardness Rating

36.0 rockwell c and 43.0 rockwell c

Countersink Angle

Between 80.0 degrees and 82.0 degrees

Material

Steel

Surface Treatment

Passivate

Thread Series Designator

Unrc

Specification Data

56878-16990-94c-4+3a manufacturers standard

NSN

5305-01-328-2693

Part Number

16990-94C-4P3A

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 16990-94C-4P3A NSN 5305-01-328-2693

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

FIIG:

A003B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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