Model: GB510K4-9

Socket Head Cap Screw

Special Features:

Spindle passivate per qq-p-35; 180000 psi; material cres ams 5643 17-4ph or alloy steel per mil-s-6049

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.428 inches
Fastener Length
0.990 inches
Head Style
Flat countersunk
Head Diameter
Between 0.449 inches and 0.507 inches
Locking Feature
Detent ball threads
Shank Unthreaded Hole Diameter
0.076 inches first hole and 0.086 inches first hole
Internal Drive Style
Offset cruciform (torque set)
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Min. Tensile Strength (psi)
180000 pounds per square inch
Hardness Rating
39.0 rockwell c fastener and 45.0 rockwell c fastener
Hardness Rating
50.0 rockwell c locking feature and 58.0 rockwell c locking feature
Hardness Rating
50.0 rockwell c and 58.0 rockwell c locking feature
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Distance From Head Largest Bearing Surface To Shank Hole Center
0.885 inches first hole and 0.905 inches first hole
Surface Finish
63.0 microinches bearing surface of head
Surface Finish
63.0 microinches grip
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 440c locking feature
Material
Steel comp 631 spring
Material
Steel comp 8740 fastener
Material Specification
Ams 5644 assn standard single material response spring or astm a580 assn standard single material response spring
Material Specification
Mil-s-6049 military specification single material response fastener
Surface Treatment
Cadmium fastener and chromate fastener
Surface Treatment
Passivate locking feature
Surface Treatment
Passivate spring
Surface Treatment Specification
Q-p-35 federal specification 13th treatment response spring
Surface Treatment Specification
Qq-p-35 federal specification single treatment response locking feature
Surface Treatment Specification
Qq-p-416 type 2 cl 2 federal specification single treatment response fastener
Thread Series Designator
Unjf
NSN
5305-00-151-8676
Part Number
GB510K4-9
Description
Screw,cap,socket Head
CAGE
26512

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part GB510K4-9 NSN 5305-00-151-8676

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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