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Externally Relieved Body Screw NSN 5305-00-638-7878

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also bolt, externally relieved body and bolt, internal wrenching.

NSN 5305-00-638-7878 NSN: 5305-00-638-7878

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.292 inches and 0.342 inches
Fastener Length
Between 1.302 inches and 1.322 inches
Head Style
Button
Head Diameter
Between 0.406 inches and 0.446 inches
Head Height
Between 0.103 inches and 0.113 inches
First Diameter From Head
Between 0.184 inches and 0.190 inches
Second Diameter From Head
Between 0.136 inches and 0.151 inches
Distance From Largest Bearing Surface Of Head To End Of First Diameter
Between 0.230 inches and 0.260 inches
Distance From Largest Bearing Surface Of Head To End Of Second Diameter
Between 0.980 inches and 1.010 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Externally Relieved Body Diameter Quantity
2
Material
Steel comp 1018
Material Specification
66 federal standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416 type 2 cl 2 federal specification single treatment response
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
006387878
NSN
5305006387878

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1406168
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 5305-00-638-7878
What are the manufacturers of nsn 5305006387878?
Does this nsn 5305006387878 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305006387878
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). it is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. see also bolt, externally relieved body and bolt, internal wrenching.
Does nsn 5305006387878 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305006387878 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305006387878?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
01852
FIIG:
A003B0
App. Key:
SE
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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