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NSN 5320-01-021-3799

Lockbolt

About this product

Between 1.030 inches and 1.050 inches fastener length, flush countersunk head style, between 0.127 inches and 0.130 inches width between flats, shank diameter: between 0.3266 inches and 0.3276 inches .

Manufacturer part number HL557-10-8 for national stock number 5320010213799.

Datasheet

  • Product description

    Pin-rivet NSN 5320-01-021-3799.

  • MPN or Model

    HL557-10-8

  • Schedule B
    7318.23.0000 (Rivets of iron or steel)
  • NMF (National Motor Freight)
    106510 - Rivets I/s Plain/galvanized Etc
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Fastener Length
    Between 1.030 inches and 1.050 inches
  • Head Style
    Flush countersunk
  • Width Between Flats
    Between 0.127 inches and 0.130 inches
  • Shank Diameter
    Between 0.3266 inches and 0.3276 inches
  • Shank Style
    Pin-rivet, straight, threaded
  • Head Major Diameter
    Between 0.469 inches and 0.474 inches
  • Grip Length
    0.500 inches
  • Min. Tensile Strength (psi)
    160000 pounds per square inch
  • Thread Size
    0.312 inches
  • Countersink Angle
    100.0 degrees
  • Material
    Steel
  • Surface Treatment
    Cadmium
  • Surface Treatment Specification
    Qq-p-416, type 2, cl 3 federal specification single treatment response
  • Thread Series Designator
    Unjf
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Pin-rivet

A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. a locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. the shank may include an external wrenching facility which breaks off at a predetermined applied torque.

Mechanic Bill explains Lockbolt

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NSN 5320010213799

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HL557-10-8 Hi-shear Corporation
HL557-10-8 Alcoa Fastening Systems
3M280A5-8 Boeing Company, The
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