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Machine Screw NSN 5305-00-638-7291

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

NSN 5305-00-638-7291 NSN: 5305-00-638-7291

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.214 inches and 0.250 inches
Fastener Length
Between 0.219 inches and 0.250 inches
Head Style
Binding
Head Diameter
Between 0.171 inches and 0.181 inches
Head Height
Between 0.041 inches and 0.050 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.086 inches
Thready Qty Per Inch (tpi)
56
Min. Tensile Strength (psi)
60000 pounds per square inch
Screw Material
Steel
Screw Material Specification
Qq-s-633 federal specification single material response
Screw Surface Treatment
Cadmium or zinc
Screw Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification 1st treatment response or qq-z-325, type 2, cl 3 federal specification 2nd treatment response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
1 type and 8s style
FSC
5305 Screws
NIIN
006387291
NSN
5305006387291

Manufacturer Part Numbers

Part numbers registered to this national stock number.

No part numbers found for this NSN.

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 5305-00-638-7291
What are the manufacturers of nsn 5305006387291?
Does this nsn 5305006387291 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305006387291
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
Does nsn 5305006387291 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305006387291 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305006387291?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
App. Key:
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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