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Close Tolerance Screw NSN 5305-01-268-4911

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 5305-01-268-4911 NSN: 5305-01-268-4911

  Stock Availability

NSN 5305012684911 availability
(as of 11/21/2024).

  • NS: 228
  • NE: 1965

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.469 inches
Fastener Length
0.719 inches
Head Style
Fillister countersunk
Head Diameter
Between 0.390 inches and 0.395 inches
Head Height
0.015 inches
Grip Diameter
Between 0.249 inches and 0.250 inches
Internal Drive Style
High-torque
Thread Diameter
0.250 inches
Grip Length
0.250 inches
Thready Qty Per Inch (tpi)
3a
Countersink Angle
100.0 degrees
Material
Steel
Surface Treatment
Aluminum
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
012684911
NSN
5305012684911

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
HT4053-4-4A
Cage Code:
0PTK6
Status:
A
MSDS:
Part Number:
ST3M740-4L4
Cage Code:
76301
Status:
A
MSDS:
Part Number:
10113616
Cage Code:
A486G
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 5305-01-268-4911
What are the manufacturers of nsn 5305012684911?
Does this nsn 5305012684911 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012684911
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 5305012684911 contain any precious metals?
No precious metal content.
Does nsn 5305012684911 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012684911?
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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