Model: H185-3-19

Close Tolerance Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.363 inches
Fastener Length
1.553 inches
Head Style
Flat countersunk
Head Diameter
Between 0.258 inches and 0.305 inches
Grip Diameter
Between 0.1885 inches and 0.1895 inches
Single Shear Strength
132000 pounds per square inch
Internal Drive Style
Offset cruciform (torque set)
End Application
Pacer dawn
Thread Diameter
0.190 inches
Grip Length
Between 1.180 inches and 1.200 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
220000 pounds per square inch
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Criticality Code Justification
Anee and aaur
Material
Steel comp h11
Material Specification
Ams6487 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Nas672 national specification 1st treatment response
Thread Series Designator
Unf
NSN
5305-01-382-1306
Part Number
H185-3-19
Description
Screw,close Tolerance
CAGE

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part H185-3-19 NSN 5305-01-382-1306

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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:
Y

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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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