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Close Tolerance Screw NSN 5305-00-631-6081

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 5305-00-631-6081 NSN: 5305-00-631-6081

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.276 inches
Fastener Length
Between 0.636 inches and 0.666 inches
Head Style
Flat countersunk
Head Diameter
Between 0.328 inches and 0.385 inches
Grip Diameter
Between 0.1885 inches and 0.1895 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.190 inches
Grip Length
0.375 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
36.0 rockwell c and 40.0 rockwell c
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Material
Steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-8503 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-6049 military specification 5th material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, ty2 cl3 federal specification single treatment response
Thread Series Designator
Unf
Specification Data
80205-nas1203 professional/industrial association standard
FSC
5305 Screws
NIIN
006316081
NSN
5305006316081

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS1203-6
Cage Code:
30889
Status:
A
MSDS:
Part Number:
10200740
Cage Code:
A486G
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318152000
  • NAICS: 332722
  • SITC: 69421
  • Description: Bolts and bolts and their nuts or washers exported in the same shipment
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-00-631-6081
What are the manufacturers of nsn 5305006316081?
Does this nsn 5305006316081 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305006316081
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 5305006316081 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305006316081 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305006316081?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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