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Socket Head Cap Screw NSN 5305-01-178-1976

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 5305-01-178-1976 NSN: 5305-01-178-1976

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.078 inches and 0.141 inches
Fastener Length
Between 0.109 inches and 0.141 inches
Head Style
Flat chamfer
Head Diameter
Between 0.112 inches and 0.118 inches
Head Height
Between 0.070 inches and 0.073 inches
Internal Drive Style
Hexagon
Thread Diameter
0.073 inches
Width Across Flats
Between 0.063 inches and 0.064 inches
Thready Qty Per Inch (tpi)
64
Material
Steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303 plus x or steel comp 303se or steel comp 303cu or steel comp 303ma or steel comp 304 or steel comp 304l
Surface Treatment
Passivate
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
011781976
NSN
5305011781976

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
N171P3002
Cage Code:
97424
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 5305-01-178-1976
What are the manufacturers of nsn 5305011781976?
Does this nsn 5305011781976 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305011781976
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 5305011781976 contain any precious metals?
No precious metal content.
Does nsn 5305011781976 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305011781976?
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
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