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Close Tolerance Screw NSN 5305-01-521-5116

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 5305-01-521-5116 NSN: 5305-01-521-5116

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.276 inches
Fastener Length
Between 0.823 inches and 0.853 inches
Head Style
Flat chamfer
Head Diameter
Between 0.357 inches and 0.373 inches
Head Height
Between 0.122 inches and 0.133 inches
Spline Minor Diameter
Between 0.110 inches and 0.112 inches
Spline Major Diameter
Between 0.154 inches and 0.156 inches
Locking Feature
Prevailing torque all metal design
Grip Diameter
Between 0.1890 inches and 0.1895 inches
Internal Drive Style
Torx
End Application
Mv-22 aircraft
Thread Diameter
0.190 inches
Grip Length
Between 0.552 inches and 0.572 inches
Thready Qty Per Inch (tpi)
32
Criticality Code Justification
Agav
Part Name Assigned By Controlling Agency
Screw, pan head, close tolerance, short thread, six lobe
Special Features
Underside of head, root of threads and thread flanks 32 microinches ra. All other surfaces, 125 microinches ra.
Material
Iron alloy 660
Material Specification
Ams 5731 a286 assn standard single material response or ams5732 a286 assn standard single material response or ams 5737 a286 assn standard single material response or ams 5853 a286 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Ams-qq-p-35, type ii or viii assn standard single treatment response
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
015215116
NSN
5305015215116

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BACS12HW3AU9
Cage Code:
81205
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 5305-01-521-5116
What are the manufacturers of nsn 5305015215116?
Does this nsn 5305015215116 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305015215116
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 5305015215116 contain any precious metals?
No precious metal content.
Does nsn 5305015215116 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305015215116?
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
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