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Socket Head Cap Screw NSN 5305-01-564-3121

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 5305-01-564-3121 NSN: 5305-01-564-3121

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.970 inches and 1.000 inches
Fastener Length
1.000 inches
Head Style
Flat chamfer
Head Diameter
Between 0.409 inches and 0.457 inches
Head Height
Between 0.306 inches and 0.312 inches
Internal Drive Style
Hexagon
Thread Diameter
0.312 inches
Width Across Flats
0.250 inches
Thready Qty Per Inch (tpi)
24
Part Name Assigned By Controlling Agency
5/16-24x1 inch alloy plain finish socket head cap screw
Special Features
Material alloy plain finish
Color
Black
Material
Steel
Surface Treatment
Oxide
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
015643121
NSN
5305015643121

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
12759-00759
Cage Code:
0Y3H3
Status:
A
MSDS:
Part Number:
23820
Cage Code:
0Y3H3
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 5305-01-564-3121
What are the manufacturers of nsn 5305015643121?
Does this nsn 5305015643121 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305015643121
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 5305015643121 contain any precious metals?
No precious metal content.
Does nsn 5305015643121 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305015643121?
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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