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Shoulder Screw NSN 5305-00-239-8581

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 5305-00-239-8581 NSN: 5305-00-239-8581

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Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.282 inches and 0.287 inches
Fastener Length
1.312 inches
Head Style
Binding
Head Diameter
0.562 inches
Head Height
0.190 inches
Shoulder Diameter
0.371 inches and 0.373 inches first shoulder
Shoulder Length
1.025 inches and 1.030 inches first shoulder
Shank Unthreaded Hole Diameter
0.076 inches first hole
Internal Drive Style
Slot
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Distance From Head Largest Bearing Surface To Shank Hole Center
0.095 inches and 0.100 inches first hole
Shoulder Shape
Round first shoulder
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 4340
Surface Treatment
Cadmium
Surface Treatment Specification
Cv-2.2, fscm 49956 mfr ref single treatment response
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
002398581
NSN
5305002398581

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
685706-1
Cage Code:
3B150
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 5305-00-239-8581
What are the manufacturers of nsn 5305002398581?
Does this nsn 5305002398581 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305002398581
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 5305002398581 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305002398581 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305002398581?
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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