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Close Tolerance Screw NSN 5305-01-047-6248

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 5305-01-047-6248 NSN: 5305-01-047-6248

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.278 inches and 0.328 inches
Fastener Length
Between 4.356 inches and 4.376 inches
Head Style
Crowned hexagon
Head Height
Between 0.126 inches and 0.141 inches
Width Between Flats
Between 0.430 inches and 0.439 inches
Locking Feature
Detent ball grip
Grip Diameter
Between 0.2487 inches and 0.2492 inches
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole
Internal Drive Style
Slot
End Application
Spec item
Thread Diameter
0.250 inches
Grip Length
Between 3.937 inches and 3.953 inches
Thready Qty Per Inch (tpi)
28
Distance From Head Largest Bearing Surface To Shank Hole Center
4.260 inches first hole and 4.280 inches first hole
Surface Finish
32.0 microinches grip
Material
Steel comp xm-13
Material Specification
Ams 5629 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
010476248
NSN
5305010476248

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS3369B463
Cage Code:
96906
Status:
A
MSDS:
Part Number:
AS169-4-63
Cage Code:
84256
Status:
A
MSDS:
Part Number:
CA2658-4-63
Cage Code:
29372
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 5305-01-047-6248
What are the manufacturers of nsn 5305010476248?
Does this nsn 5305010476248 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305010476248
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 5305010476248 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305010476248 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305010476248?
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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