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Hexagon Head Cap Screw NSN 5305-00-439-6241

Item Description

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

NSN 5305-00-439-6241 NSN: 5305-00-439-6241

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.359 inches and 0.389 inches
Fastener Length
Between 0.359 inches and 0.500 inches
Head Style
Hexagon extended washer
Head Height
Between 0.259 inches and 0.274 inches
Width Between Flats
Between 0.489 inches and 0.500 inches
Extended Washer Diameter
Between 0.686 inches and 0.706 inches
Extended Washer Thickness
Between 0.056 inches and 0.071 inches
Locking Feature
Detent ball bearing surface of head
Thread Diameter
0.312 inches
Features Provided
Unfinished head
Thready Qty Per Inch (tpi)
18
Material
Steel comp 1018
Material Specification
Qq-s-634 federal specification single material response
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
004396241
NSN
5305004396241

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
8744246
Cage Code:
19207
Status:
A
MSDS:
Part Number:
9416867
Cage Code:
24617
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 5305-00-439-6241
What are the manufacturers of nsn 5305004396241?
Does this nsn 5305004396241 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305004396241
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. the threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. the thread length being the controlled dimension, the grip length is not specified. a locking feature may be incorporated in the design of the head or threads. the head is not designed to be held or driven with an inserted driver or by the thumb and fingers. excludes bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
Does nsn 5305004396241 contain any precious metals?
No precious metal content.
Does nsn 5305004396241 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305004396241?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
18257
FIIG:
A003B0
App. Key:
SB
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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