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Socket Head Cap Screw

NSN 5305-00-050-9221 | NIIN 00-050-9221
NSN 5305-00-050-9221 NSN: 5305-00-050-9221
Item Description
5305-00-050-9221

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.

Features and Characteristics

Thread Class
3A
Thread Direction
Right-hand
Thread Length
Between 0.661 inches and 0.802 inches
Fastener Length
Between 0.970 inches and 1.000 inches
Head Style
Flat countersunk
Head Diameter
Between 0.600 inches and 0.656 inches
Internal Drive Style
Hexagon
Thread Diameter
0.312 inches
Width Across Flats
0.188 inches
Thready Qty Per Inch (tpi)
18
Hardness Rating
36.0 Rockwell c and 45.0 Rockwell c
Countersink Angle
Between 80.0 degrees and 84.0 degrees
Material
Steel
Material Specification
66 federal standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
QQ-P-416, type 2 cl 3 federal specification single treatment response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
4 type
FSC
5305 Screws
NIIN
000509221
NSN
5305000509221

Manufacturer Part Numbers

Alternate part numbers that match this National Stock Number
Part Number
Cage
Status
MSDS
Part Number:
MS24667-41
Cage Code:
80205
Status:
A
MSDS:
Part Number:
MS24667-41
Cage Code:
96906
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 5305-00-050-9221
What are the manufacturers of nsn 5305000509221?
Does this nsn 5305000509221 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305000509221
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 5305000509221 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305000509221 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305000509221?
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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