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Shoulder Screw NSN 5305-00-439-6253

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

NSN 5305-00-439-6253 NSN: 5305-00-439-6253

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Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.270 inches
Fastener Length
Between 0.353 inches and 0.397 inches
Head Style
Flat chamfer
Head Diameter
Between 0.240 inches and 0.255 inches
Head Height
Between 0.068 inches and 0.092 inches
Shoulder Diameter
0.140 inches first shoulder and 0.143 inches first shoulder
Shoulder Length
0.064 inches first shoulder and 0.068 inches first shoulder
Internal Drive Style
Slot
Thread Diameter
0.086 inches
Thready Qty Per Inch (tpi)
64
Hardness Rating
32.0 rockwell c and 38.0 rockwell c
Criticality Code Justification
Aatn
Shoulder Shape
Round first shoulder
Material
Steel comp 1137 or steel comp 1141
Surface Treatment
Phosphate
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
004396253
NSN
5305004396253

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
7791024
Cage Code:
19204
Status:
A
MSDS:
Part Number:
717124430802
Cage Code:
0000V
Status:
A
MSDS:
Part Number:
5305PL0953908
Cage Code:
9009H
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 5305-00-439-6253
What are the manufacturers of nsn 5305004396253?
Does this nsn 5305004396253 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305004396253
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. it has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. the head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. no. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. a locking feature may be incorporated in the design of the head or threads. for items which are both shouldered and have an externally relieved body, use screw, externally relieved body. for items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. excludes bolt, internal wrenching and screw, cap, socket head.
Does nsn 5305004396253 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305004396253 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305004396253?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
App. Key:
SL
Cond. Code:
1
Status:
A

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