Model: NAS1205-7D

Close Tolerance Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.375 inches
Fastener Length
Between 0.798 inches and 0.828 inches
Head Style
Flat countersunk
Head Diameter
Between 0.304 inches and 0.314 inches
Grip Diameter
Between 0.3106 inches and 0.3112 inches
Shank Unthreaded Hole Diameter
0.076 inches grip and 0.086 inches grip
Shank Unthreaded Hole Diameter
0.076 inches and 0.086 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.312 inches
Grip Length
Between 0.428 inches and 0.448 inches
Thready Qty Per Inch (tpi)
A24
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Distance From Head Largest Bearing Surface To Shank Hole Center
0.994 inches bearing surface of head
Material
Steel
Thread Series Designator
Unjf
NSN
5305-01-383-6097
Part Number
NAS1205-7D
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 NAS1205-7D NSN 5305-01-383-6097

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:
BA
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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