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Shear Bolt

NSN: 5306-01-473-6241 | Model: MS14181-05008L

A high strength, 160, 000 pounds per square inch (1100 megapascals) tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the shank diameter, but not below the major diameter for applicable class of fit, as shown in the screw thread standards, federal standard h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

NSN Properties and Flags
NATO Stock Number
Thread Class
Thread Direction
Thread Length
0.589 inches
Fastener Length
Between 1.099 inches and 1.129 inches
Head Style
Spline extended washer
Head Height
Between 0.302 inches and 0.322 inches
Extended Washer Diameter
Between 0.575 inches and 0.585 inches
Extended Washer Thickness
Between 0.035 inches and 0.055 inches
Grip Diameter
Between 0.3110 inches and 0.3120 inches
Head Minor Diameter
Between 0.360 inches and 0.375 inches
End Application
F/a-18e aircraft
Thread Diameter
0.3125 inches
Grip Length
Between 0.490 inches and 0.510 inches
Thready Qty Per Inch (tpi)
Min. Tensile Strength (psi)
220000 pounds per square inch
Criticality Code Justification
Surface Finish
32.0 microinches bearing surface of head
Nickel alloy 718
Material Specification
Ams 5662 assn standard single material response or ams 5663 assn standard single material response
Surface Treatment
Thread Series Designator
Recent Solicitations
Solicitation Return by Date Buyer Code Quantity
SPE5E417TE656 2017-08-28 PHPHB 112 EA

Inventory Check

The last inventory check on this NSN was done on 11/20/2023. Due to rapid changes in inventory this may not be the current stock qty.

  • New Surplus: 124
  • New: 469

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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NSN 5306-01-473-6241 Datasheet

Supply Class (FSC):
Cross Reference:
  • MS14181-05008L
  • MS14181-05008
  • 20-106-05008L
Cage Codes:
  • Military Standards (CAGE 96906)
  • Bell Helicopter Textron Inc. (CAGE 97499)
Schedule B & Trade:
  • Schedule B: 7508900000 (NAICS 332999)

    Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)

  • SITC: 69975

    Articles of nickel, n.E.S.

  • End Use: 12300

    Finished metal shapes


N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


A - Item does not contain precious metal.


- Represents items with no adp components


- The item does not have a nuclear hardened feature but does have other critical featur (s) such as tolerance, fit restrictions or application.

Freight Information:
  • NMFC:

    093486 - Bolts, nuts or screws, noi (sub 3)

  • WCC:

    573 - Bolts or nuts (iron or steel),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ACC:

    A - Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LCL:

    W - Rating variable

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
    No qup
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $738.84 to $1,231.40..
Does NSN 5306-01-473-6241 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Air Force, Department Of The Navy, and Republic Of Korea
What is the NIIN of NSN 5306-01-473-6241?
014736241 or 01-473-6241
Does NSN 5306-01-473-6241 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5306-01-473-6241?
Solicitation SPE5E417TE656 for qty 112 on 08/25/2017
When was this national stock number assigned to the federal catalog?
Apr 12, 2000