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Socket Head Cap Screw NSN 5305-00-078-7021

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 5305-00-078-7021 NSN: 5305-00-078-7021

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.625 inches
Fastener Length
0.625 inches
Head Style
Oval countersunk
Head Diameter
Between 0.452 inches and 0.507 inches
Locking Feature
Patch threads
Internal Drive Style
Cross recess type 1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Countersink Angle
Between 80.0 degrees and 82.0 degrees
Material
Steel
Surface Treatment
Cadmium and chromate or zinc and chromate
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
000787021
NSN
5305000787021

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8743911
Cage Code:
19207
Status:
A
MSDS:
Part Number:
M34AS420R10C
Cage Code:
26233
Status:
A
MSDS:
Part Number:
8743903
Cage Code:
19207
Status:
A
MSDS:
Part Number:
5305000787021
Cage Code:
A00AM
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 5305-00-078-7021
What are the manufacturers of nsn 5305000787021?
Does this nsn 5305000787021 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305000787021
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 5305000787021 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305000787021 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305000787021?
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

What do you get when you order from nationalstocknumber.org?

  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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