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Close Tolerance Bolt

Model ST3M752L4-17

Quick Information about ST3M752L4-17

3a thread class, right-hand , 0.468 inches thread length, 1.515 inches fastener length, double hexagon extended washer head style

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Product Details

  • NSN:
    5306-01-606-0727 (5306016060727)
  • Thread Direction:
    Right-hand
  • Thread Length:
    0.468 inches
  • Fastener Length:
    Between 1.515 inches and 1.545 inches
  • Head Style:
    Double hexagon extended washer
  • Head Height:
    0.250 inches
  • Width Flats:
    Between 0.297 inches and 0.312 inches
  • Extended Diameter:
    Between 0.460 inches and 0.470 inches
  • Extended Thickness:
    0.036 inches
  • Grip Diameter:
    Between 0.2490 inches and 0.2495 inches
  • End Application:
    Specific navy items
  • Thread Diameter:
    0.250 inches
  • Grip Length:
    1.000 inches
  • Thready (tpi):
    28
  • Criticality Justification:
    Agav
  • Part Agency:
    Bolt-close tol, spline drive, flange hd (220 ksi) cres
  • Material Specification:
    Ams5829, ph13 - 8mo assn standard single material response
  • Surface Specification:
    Ams-qq-b-35 assn standard single treatment response
  • Schedule B Code:
    7318152000

Classification

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

Definition Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27851
FIIG:
A003B0
Concept No.:
App. Key:
BC
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:
A
ESD:
ESD:
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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