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Socket Head Cap Screw NSN 5305-01-081-2388

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 5305-01-081-2388 NSN: 5305-01-081-2388

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.552 inches
Fastener Length
0.750 inches
Head Style
Flat countersunk
Head Diameter
0.656 inches
Locking Feature
Patch threads
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
82.0 degrees
Special Features
Critical item hydrogen embrittlement relief required
Material
Steel
Material Specification
66 federal standard single material response
Surface Treatment
Zinc
Surface Treatment Specification
Qq-z-325, type 2, cl 3 federal specification single treatment response
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
010812388
NSN
5305010812388

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3176209-C-096
Cage Code:
10001
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 5305-01-081-2388
What are the manufacturers of nsn 5305010812388?
Does this nsn 5305010812388 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305010812388
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 5305010812388 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305010812388 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305010812388?
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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