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Close Tolerance Screw NSN 5305-01-385-4390

Item Description

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.

NSN 5305-01-385-4390 NSN: 5305-01-385-4390

Features and Characteristics

Thread Class
3a
Thread Length
0.276 inches
Grip Diameter
0.438 inches
Thread Diameter
0.190 inches
Grip Length
0.714 inches
Thready Qty Per Inch (tpi)
32
Special Features
Machine-pan head modified, close tolerance, short thread, torq-set, alloy steel, cadmium plated per qq-p-416, type ii, class 2, 160, 000 to 180, 000 psi uts, shall be in accordance with all requirements as specified in national aerospace standard nas1141 through 1148
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
013854390
NSN
5305013854390

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS1143-7
Cage Code:
80205
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5305-01-385-4390
What are the manufacturers of nsn 5305013854390?
Does this nsn 5305013854390 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305013854390
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.
Does nsn 5305013854390 contain any precious metals?
No precious metal content.
Does nsn 5305013854390 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305013854390?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
App. Key:
SS
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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