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Socket Head Cap Screw NSN 5305-01-597-1639

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 5305-01-597-1639 NSN: 5305-01-597-1639

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Fastener Length
0.625 inches
Head Style
Flat countersunk
Head Diameter
0.531 inches
Locking Feature
Patch locking feature
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Countersink Angle
82.0 degrees
Part Name Assigned By Controlling Agency
Screw, socket, flathead, self-locking
Material
Steel
Material Specification
Ff-s-86, ty iv federal specification single material response
Surface Treatment
Zinc
Surface Treatment Specification
Qq-z-325, ty ii, cl 3 federal specification single treatment response
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
015971639
NSN
5305015971639

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1611203-10
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 5305-01-597-1639
What are the manufacturers of nsn 5305015971639?
Does this nsn 5305015971639 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305015971639
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 5305015971639 contain any precious metals?
No precious metal content.
Does nsn 5305015971639 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305015971639?
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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