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EB nut — double hex, high tensile, 180 ksi, 250 °F

Double Hex Nut, High Tensile, 180,000 psi, 250 °F: dimensions by thread size and part numbers as listed. Tolerances and notes are on the standard.

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EB at a glance

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EB engineering drawing with dimensions
Engineering drawing · dimensions in inches

Specification

ItemValue
TypeSelf-locking nut
MaterialHigh-tensile steel, 180,000 psi
Max. temperature250 °F
StatusCheck the current issue of the standard before design use.

Dimensions by size

Dimension, in.2500-28.3125-24.3750-24.4375-20.5000-20.5625-18
A — A, max.334.396.453.516.563.625
B — B, max-min.376-.367.439-.430.502-.492.564-.553.627-.616.690-.679
C — C, ref.420.491.562.633.704.774
D — D (+.000 / -.010).531.593.687.781.875.968
F — F, ref.090.090.099.107.118.127
UT — Ultimate tensile strength, lb min6,98011,10017,10023,20030,90039,200

Dimensions in inches, as tabulated for the part. Blank cells (—): not stated in the documents we hold; take them from the standard.

Part numbers

Part no.SizeBristol part number
EB-048.2500-28DHN35-4
EB-054.3125-24DHN35-5
EB-064.3750-24DHN35-6
EB-070.4375-20DHN35-7
EB-080.5000-20DHN35-8
EB-098.5625-18DHN35-9

Part numbers as listed for the part; the standard governs and may list others.

Part number

What each code means

PartMeaning
ExampleEB-048 — .2500-28 double hex nut, 180 ksi

Notes from the standard

  • The table is for reference only: an equivalent part may be quoted.
  • Part number format as commonly written; check the standard for the exact format.
  • Approved data governs. Use the nut the SRM, drawing or IPC calls for.

Where to buy

AmericaDistributor coming soonOur partner for this region is on its way
EuropeDistributor coming soonOur partner for this region is on its way
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Calculators

CalculatorTorque by Part Number: Bolt and NutTorque for an AN or NAS bolt with its nut, from AC 43.13-1B Table 7-1CalculatorTorque Wrench Extension CalculatorTorque wrench setting with a crowfoot or adapterCalculatorAviation Unit ConverterConvert the units a hangar mixesCalculatorPart number cross-referenceType any EB number and see its other names.

Guides

ChartAN Bolt & Nut Torque ChartRecommended torque for AN and MS nuts and bolts in inch-pounds, fine and coarse thread, plus…ChartFastener cross-referenceFrequent fastener crosses with their supersession status

How to do it

Standard practiceTorquingHow to torque aircraft bolts

Tools

Tool guideTorque wrenchHow to use an aircraft torque wrenchBuying guideTorque Wrenches: Click, Dial or Beam, and What RangeWhich torque wrench for AN hardware

Data sheets

Data sheetNutsThe family side by side.Data sheetWashersAircraft washers side by sideData sheetAN bolts, AN3 to AN8AN3 to AN8 aircraft bolts side by sideData sheetTekton TRQ — micrometer click torque wrenches, 1/4 to 1/2 in driveTekton TRQ Tekton micrometer torque wrenches

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Sources

  • EB — Double Hex Nut, High Tensile, 180,000 psi, 250 °F — nominal sizes and part numbers.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.
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