NSN 5305-00-422-2538

Close Tolerance Screw

FSC: 5305     NIIN: 004222538

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Product Characteristics

NSN:
5305004222538
Demilitarization:
NO
INC:
29294
Shelf Life:
N/A
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.270 inches and 0.326 inches
Fastener Length:
Between 0.925 inches and 0.972 inches
Head Style:
Flat countersunk
Head Diameter:
Between 0.390 inches and 0.395 inches
Grip Diameter:
Between 0.2485 inches and 0.2495 inches
Shank Unthreaded Hole Diameter:
0.066 inches first hole and 0.086 inches first hole
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
Between 0.615 inches and 0.635 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
180000 pounds per square inch
Countersink Angle:
Between 99.5 degrees and 100.5 degrees
Distance From Head Largest Bearing Surface To Shank Hole Center:
0.799 inches first hole and 0.866 inches first hole
Surface Finish:
32.0 microinches grip
Material:
Steel comp 6150 or steel comp 8740 or steel comp 4340 or steel comp 4140
Surface Treatment:
Cadmium and chromate
Surface Treatment Specification:
Qq-p-416, ty2 cl3 federal specification single treatment response
Thread Series Designator:
Unjf

Part Numbers

  • 51B581-4-10H
    NORTHROP GRUMMAN TECHNICAL SERVICES,

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

7318152000 - Bolts and bolts and their nuts or washers exported in the same shipment.

Professional Distribution

  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
  •   AS9120 Quality Standards
  •   100% Quality Inspections
ITAR registered supplier

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