NSN 5306-00-286-1525 NIIN — Close Tolerance Bolt

National Stock number : 5306-00-286-1525

Close Tolerance Bolt


Available Quantity 261
Available Conditions NS NE
Classification Bolts - FSC 5306
Schedule B 7318152000
Stock Check Date 03/30/2026
Part-Number.info Quality System
  •   ISO 9001:2015 + AS9120B Certifed
  •   Audited supply chain
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   HAZMAT Certified
  •   ITAR and DDTC Registered
AS9120 Certified Supplier

Product Properties


Description

Close Tolerance Bolt

Thread Class

3a

Thread Direction

RIGHT-Hand

Thread Length

0.468in. ⁓15/32"

Fastener Length

2.406in. ⁓2-13/32"

Head Style

hexagon

Head Height

0.140in. and 0.172in. ⁓11/64"

Width Between Flats

0.428in. and 0.440in.

Grip Diameter

0.2487in. and 0.2492in.

Shank Unthreaded Hole Diameter

0.076in. first hole

Nominal Thread Diameter

0.250in. ⁓1/4"

Grip Length

1.938in.

Thread Quantity Per Inch

28

Minimum Tensile Strength

125000 pounds per square inch

Hardness Rating

26.0 rockwell c and 32.0 rockwell c

Distance From Head Largest Bearing Surface To Shank Hole Center

2.250in. first hole

Surface Finish

63.0 microinches grip

Material

steel comp 431

Material Document And Classification

MIL-S-18732 mil spec single material response

Surface Treatment

passivate

Surface Treatment Document And Classification

MIL-B-6812 mil spec single treatment response

Thread Series Designator

unf

Pricing and Availability Quote

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National Stock Number
5306-00-286-1525
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