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Close Tolerance Screw NSN 5305-01-183-4018

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 5305-01-183-4018 NSN: 5305-01-183-4018

  Stock Availability

NSN 5305011834018 availability
(as of 10/03/2022).

  • NE: 366
  • NS: 102

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
Between 0.578 inches and 0.618 inches
Fastener Length
Between 0.838 inches and 0.858 inches
Head Style
Flat countersunk
Head Diameter
Between 0.454 inches and 0.508 inches
Grip Diameter
Between 0.1895 inches and 0.2495 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Grip Length
Between 0.302 inches and 0.322 inches
Width Across Flats
Between 0.1565 inches and 0.1587 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
160000 pounds per square inch
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Surface Finish
32.0 microinches threads
Special Features
3 keyways in body length, counterbored in thread end
Material
Iron alloy 660
Material Specification
Ams 5732 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
011834018
NSN
5305011834018

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FIT01-0002-4005
Cage Code:
58998
Status:
A
MSDS:
Part Number:
CA2193-4-05
Cage Code:
29372
Status:
A
MSDS:
Part Number:
LE111-0002-4005
Cage Code:
43999
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 5305-01-183-4018
What are the manufacturers of nsn 5305011834018?
Does this nsn 5305011834018 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305011834018
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 5305011834018 contain any precious metals?
No precious metal content.
Does nsn 5305011834018 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305011834018?
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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