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Close Tolerance Screw NSN 5305-01-066-5306

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 5305-01-066-5306 NSN: 5305-01-066-5306

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.397 inches
Fastener Length
1.085 inches
Head Style
Flat countersunk
Head Diameter
Between 0.497 inches and 0.507 inches
Grip Diameter
Between 0.2641 inches and 0.2651 inches
Single Shear Strength
132000 pounds per square inch
Internal Drive Style
High-torque
Thread Diameter
0.250 inches
Grip Length
0.688 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
220000 pounds per square inch
Hardness Rating
46.0 rockwell c and 50.0 rockwell c
Countersink Angle
100.0 degrees
Material
Steel
Material Specification
Ams 6487 assn standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Mac ps-13145 fscm 76301 mfr ref all treatment responses
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
010665306
NSN
5305010665306

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
66908H4-11
Cage Code:
80539
Status:
A
MSDS:
Part Number:
HS2623-4-11
Cage Code:
17446
Status:
A
MSDS:
Part Number:
HT307-4-11
Cage Code:
C4293
Status:
A
MSDS:
Part Number:
ST3M559-4-11
Cage Code:
76301
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 5305-01-066-5306
What are the manufacturers of nsn 5305010665306?
Does this nsn 5305010665306 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305010665306
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 5305010665306 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305010665306 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305010665306?
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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