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Socket Head Cap Screw NSN 5305-00-057-4520

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

NSN 5305-00-057-4520 NSN: 5305-00-057-4520

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.270 inches and 0.290 inches
Fastener Length
1.146 inches
Head Style
Flat chamfer
Head Diameter
Between 0.3742 inches and 0.3747 inches
Head Height
Between 0.253 inches and 0.273 inches
Locking Feature
Pellet grip
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.1875 inches and 0.1900 inches
Thready Qty Per Inch (tpi)
28
Distance From Head Largest Bearing Surface To Shank Hole Center
1.037 inches first hole
Material
Steel
Surface Treatment
Passivate
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
000574520
NSN
5305000574520

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
CA2730-4-11
Cage Code:
29372
Status:
A
MSDS:
Part Number:
AS104-04-11
Cage Code:
84256
Status:
A
MSDS:
Part Number:
CC00035-4-11
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 5305-00-057-4520
What are the manufacturers of nsn 5305000574520?
Does this nsn 5305000574520 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305000574520
An externally threaded fastener whose threaded portion is of one nominal diameter. the head has an internal socket or multiple spline for use with an inserted driver. a locking feature may be incorporated in the design of the head or threads. excludes items with bevel (conical) heads. see bolt, internal wrenching. excludes screw, shoulder; and screw, machine.
Does nsn 5305000574520 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305000574520 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305000574520?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
App. Key:
SC
Cond. Code:
1
Status:
A

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