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Externally Relieved Body Screw

Model 6202B2520-4

Quick Information about 6202B2520-4

2a thread class, copper alloy 360 overall material, cadmium and chromate overall surface treatment, unc thread series designator.

For pricing and availability of this externally relieved body screw submit the price quote form on the right.

Product Details

  • NSN:
    5305-00-282-2026 (5305002822026)
  • Thread Direction:
    Right-hand
  • Thread Length:
    Between 0.370 inches and 0.780 inches
  • Fastener Length:
    Between 1.120 inches and 1.130 inches
  • Head Style:
    Knurled no. 2
  • Head Diameter:
    Between 0.745 inches and 0.755 inches
  • Head Height:
    Between 0.369 inches and 0.381 inches
  • First Head:
    Between 0.170 inches and 0.180 inches
  • Distance Diameter:
    Between 0.490 inches and 0.510 inches
  • Internal Style:
    Slot
  • Thread Diameter:
    0.250 inches
  • Thready (tpi):
    20
  • Externally Quantity:
    1
  • Part Agency:
    Navy special project
  • Material Specification:
    Qq-b-626, 1/2 h federal specification single material response
  • Surface Specification:
    Qq-p-416, type 2, cl 3 federal specification all treatment responses
  • Schedule B Code:
    7415338550

Classification

Other copper screws (not for wood) bolts and nuts

Definition Externally Relieved Body Screw

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01852
FIIG:
A003B0
Concept No.:
App. Key:
SE
Cond. Code:
1
Status:
A

Part Materials

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

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