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Close Tolerance Screw NSN 5305-01-520-4446

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 5305-01-520-4446 NSN: 5305-01-520-4446

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.476 inches and 0.526 inches
Fastener Length
Between 1.235 inches and 1.265 inches
Head Style
Flat countersunk
Head Diameter
Between 0.429 inches and 0.479 inches
Grip Diameter
Between 0.311 inches and 0.312 inches
Internal Drive Style
Offset cruciform (torque set)
End Application
F-16 acft
Thread Diameter
0.312 inches
Grip Length
Between 0.734 inches and 0.764 inches
Thready Qty Per Inch (tpi)
24
Countersink Angle
90.0 degrees
Part Name Assigned By Controlling Agency
Screw-low hd, skirt hd
Material
Steel comp h11
Material Specification
Cda000 assn standard single material response
Surface Treatment Specification
Nas672 assn standard single treatment response
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
015204446
NSN
5305015204446

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
AIC618-5-20
Cage Code:
06725
Status:
A
MSDS:
Part Number:
93926-5-20
Cage Code:
56878
Status:
A
MSDS:
Part Number:
VT10021-5-20
Cage Code:
06710
Status:
A
MSDS:
Part Number:
SF116-5-20
Cage Code:
0KZ60
Status:
A
MSDS:
Part Number:
GS1009-5-20
Cage Code:
1EM77
Status:
A
MSDS:
Part Number:
C20645-5-20
Cage Code:
81755
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 5305-01-520-4446
What are the manufacturers of nsn 5305015204446?
Does this nsn 5305015204446 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305015204446
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 5305015204446 contain any precious metals?
No precious metal content.
Does nsn 5305015204446 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305015204446?
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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