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Socket Head Cap Screw NSN 5305-01-321-3571

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 5305-01-321-3571 NSN: 5305-01-321-3571

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.375 inches
Fastener Length
Between 4.920 inches and 5.000 inches
Head Style
Flat chamfer
Head Diameter
Between 0.642 inches and 0.656 inches
Head Height
Between 0.430 inches and 0.437 inches
Hole Diameter
Between 0.061 inches and 0.067 inches
Internal Drive Style
Hexagon
Thread Diameter
0.4375 inches
Width Across Flats
Between 0.375 inches and 0.379 inches
Hole Quantity
6
Hole Type
Drilled
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
160000 pounds per square inch
Hardness Rating
33.0 rockwell c and 42.0 rockwell c
Minimum Yield Strength
120000 pounds per square inch
Hole Configuration Style
Round internal hexagon
Material
Iron alloy 660
Material Specification
Ams 5731 assn standard single material response or ams 5737 assn standard single material response
Precious Material And Location
silver
Surface Treatment
Silver
Surface Treatment Specification
Ams 2411 assn standard single treatment response
Thread Series Designator
Unrf
Specification Data
80205-nas1351 professional/industrial association standard
FSC
5305 Screws
NIIN
013213571
NSN
5305013213571

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NAS1351N7H80S
Cage Code:
80205
Status:
A
MSDS:
Part Number:
20409-003 FIND 38
Cage Code:
78062
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 5305-01-321-3571
What are the manufacturers of nsn 5305013213571?
Does this nsn 5305013213571 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305013213571
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 5305013213571 contain any precious metals?
Item contains silver.
Does nsn 5305013213571 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305013213571?
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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