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Socket Head Cap Screw NSN 5305-01-118-9593

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 5305-01-118-9593 NSN: 5305-01-118-9593

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.477 inches and 0.636 inches
Fastener Length
Between 1.187 inches and 1.207 inches
Head Style
Flat countersunk
Head Diameter
Between 0.394 inches and 0.404 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.1409 inches and 0.1426 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 grip
Special Features
Threads to be double lead
Material
Steel comp 4140 or steel comp 8740
Material Specification
Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 cl2 federal specification single treatment response
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
011189593
NSN
5305011189593

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
GS520CK4-08
Cage Code:
29372
Status:
A
MSDS:
Part Number:
CA21070-4-8HS
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 5305-01-118-9593
What are the manufacturers of nsn 5305011189593?
Does this nsn 5305011189593 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305011189593
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 5305011189593 contain any precious metals?
No precious metal content.
Does nsn 5305011189593 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305011189593?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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