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Close Tolerance Screw NSN 5305-00-411-3218

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 5305-00-411-3218 NSN: 5305-00-411-3218

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.378 inches and 0.428 inches
Fastener Length
Between 0.576 inches and 0.606 inches
Head Style
Flat countersunk
Head Diameter
Between 0.350 inches and 0.399 inches
Grip Diameter
Between 0.2485 inches and 0.2495 inches
Internal Drive Style
Offset cruciform (torque set)
Thread Diameter
0.250 inches
Grip Length
Between 0.178 inches and 0.198 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
160000 pounds per square inch
Countersink Angle
Between 99.0 degrees and 100.0 degrees
Surface Finish
63.0 microinches grip
Material
Titanium alloy uns r56400
Material Specification
Ams4967 assn standard single material response
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
004113218
NSN
5305004113218

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
110121T4-3
Cage Code:
80539
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8109900000
  • NAICS: 331491
  • SITC: 69987
  • Description: Zirconium and articles thereof nesoi
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5305-00-411-3218
What are the manufacturers of nsn 5305004113218?
Does this nsn 5305004113218 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305004113218
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 5305004113218 contain any precious metals?
No precious metal content.
Does nsn 5305004113218 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305004113218?
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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