Model: NAS 2803-12

Close Tolerance Screw

Special Features:

Ultimate tensile strenght 180, 000min. To 200, 000max. Pounds per sq. Inch; in accordance w/ nas2803 through nas2810; short thread; head angle - 100 degrees min.

Properties:

Thread Class
3a
Thread Length
0.388 inches
Fastener Length
1.088 inches
Grip Diameter
0.750 inches
Internal Drive Style
Torque
Thread Diameter
10.000 inches
Grip Length
0.750 inches
Thready Qty Per Inch (tpi)
32
Material
Stainless steel
Surface Treatment
Cadmium
Surface Treatment Specification
Nas 672 assn standard single treatment response
Thread Series Designator
Unjf
NSN
5305-01-530-9646
Part Number
NAS 2803-12
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 NAS 2803-12 NSN 5305-01-530-9646

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:
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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