Model: NAS8603D-6

Close Tolerance Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.323 inches
Fastener Length
Between 0.730 inches and 0.760 inches
Head Style
Flat countersunk
Head Diameter
Between 0.266 inches and 0.303 inches
Grip Diameter
Between 0.1885 inches and 0.1895 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.1900 inches
Grip Length
Between 0.365 inches and 0.385 inches
Thready Qty Per Inch (tpi)
32
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Material
Steel comp 4340 or steel comp 8740
Material Specification
Mil-s-5000 assn standard single material response and mil-s-6049 assn standard single material response or ams6322 assn standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416 assn standard single treatment response
Thread Series Designator
Unjf
Specification Data
80205-nas8603 professional/industrial association standard
NSN
5305-01-470-6950
Part Number
NAS8603D-6
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 NAS8603D-6 NSN 5305-01-470-6950

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:
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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