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Socket Head Cap Screw NSN 5305-01-407-3521

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 5305-01-407-3521 NSN: 5305-01-407-3521

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.750 inches
Fastener Length
0.750 inches
Head Style
Flat chamfer
Head Diameter
Between 0.457 inches and 0.469 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)
18
Material
Steel comp 4140 and steel comp 4142 and steel comp 4145
Material Specification
Astm a193 grade b7 assn standard single material response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
2 type and b7 grade
FSC
5305 Screws
NIIN
014073521
NSN
5305014073521

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
0.31218UNC2A0.750T2GB7SEA
Cage Code:
81349
Status:
A
MSDS:
Part Number:
M1222SN5C212GANN
Cage Code:
81349
Status:
A
MSDS:
Part Number:
MIL-DTL-1222
Cage Code:
81349
Status:
A
MSDS:
Part Number:
MIL-S-1222
Cage Code:
81349
Status:
A
MSDS:
Part Number:
01080-0403LOC8-13
Cage Code:
17454
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 5305-01-407-3521
What are the manufacturers of nsn 5305014073521?
Does this nsn 5305014073521 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305014073521
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 5305014073521 contain any precious metals?
No precious metal content.
Does nsn 5305014073521 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305014073521?
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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