NSN 5305-00-548-5077

Close Tolerance Screw

FSC: 5305     NIIN: 005485077

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Product Characteristics

NSN:
5305005485077
Demilitarization:
NO
INC:
29294
Shelf Life:
N/A
Thread Class:
3a
Thread Direction:
Right-hand
Thread Length:
Between 0.290 inches and 0.357 inches
Fastener Length:
Between 0.862 inches and 0.909 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:
0.076 inches first hole
Internal Drive Style:
Offset cruciform (torque set)
Thread Diameter:
0.250 inches
Grip Length:
Between 0.552 inches and 0.572 inches
Thready Qty Per Inch (tpi):
28
Min. Tensile Strength (psi):
180000 pounds per square inch
Hardness Rating:
39.0 rockwell c and 43.0 rockwell c
Countersink Angle:
100.0 degrees
Distance From Head Largest Bearing Surface To Shank Hole Center:
0.736 inches first hole and 0.803 inches first hole
Surface Finish:
32.0 microinches grip
Material:
Steel comp 4340 or steel comp 4140 or steel comp 8740
Surface Treatment:
Cadmium and chromate
Surface Treatment Specification:
Qq-p-416, type 2, cl 2 federal specification single treatment response
Thread Series Designator:
Unjf
Specification Data:
76823-51b581 manufacturers standard

Demand History (Solicitations)

Solicitation Qty End Date Purchase Request Small Business
SPE5E219T7656 6 04/04/2019 0079019378 0%

Part Numbers

  • 51B581-4-9
    NORTHROP GRUMMAN SYSTEMS CORPORATION
  • 51B581-4-9H
    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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