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Close Tolerance Screw NSN 5305-01-539-6555

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 5305-01-539-6555 NSN: 5305-01-539-6555

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.641 inches
Fastener Length
1.203 inches
Head Style
Flat countersunk
Head Diameter
0.510 inches
Grip Diameter
Between 0.373 inches and 0.374 inches
Internal Drive Style
High-torque
Thread Diameter
0.375 inches
Grip Length
0.562 inches
Thready Qty Per Inch (tpi)
24
Min. Tensile Strength (psi)
125000 pounds per square inch
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Part Name Assigned By Controlling Agency
Screw-close tolerance 100 degrees countersunk reduced head, hi-torque, non magnetic cres, ivd aluminum coated
Special Features
Lubricant- cetyl alcohol
Material
Nickel alloy 718
Material Specification
Ams 5662 national std/spec single material response
Surface Treatment
Aluminum
Surface Treatment Specification
Mil-dtl-83488 type 2 cls 3 national std/spec single treatment response
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
015396555
NSN
5305015396555

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3M927-6L9
Cage Code:
76301
Status:
A
MSDS:
Part Number:
HT4069-6-9A
Cage Code:
06950
Status:
A
MSDS:
Part Number:
11885-6L9
Cage Code:
59563
Status:
A
MSDS:
Part Number:
WC4069-6-9
Cage Code:
60516
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7508900000
  • NAICS: 332999
  • SITC: 69975
  • Description: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5305-01-539-6555
What are the manufacturers of nsn 5305015396555?
Does this nsn 5305015396555 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305015396555
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 5305015396555 contain any precious metals?
No precious metal content.
Does nsn 5305015396555 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305015396555?
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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