Model: HT4075VS4-11-46

Close Tolerance Screw

Special Features:

Tapped hole in head 0.138-32 unjc-3b threads. Distance from top of head to injection port 0.460 nom. Inch. Injection port 0.120 nom. In. Lg; 0.60 nom. In. Wide

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.469 inches
Fastener Length
Between 1.142 inches and 1.172 inches
Head Style
Flat countersunk
Head Diameter
Between 0.456 inches and 0.508 inches
Grip Diameter
Between 0.2490 inches and 0.2495 inches
Internal Drive Style
High-torque
Thread Diameter
0.250 inches
Grip Length
Between 0.678 inches and 0.698 inches
Thready Qty Per Inch (tpi)
28
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Surface Finish
32.0 microinches bearing surface of head32.0 microinches grip32.0 microinches threads
Part Name Assigned By Controlling Agency
Navy special project
Material
Titanium alloy uns r56400
Material Specification
Ams 4928 assn standard single material response or ams 4967 assn standard single material response
Surface Treatment
Phosphate
Thread Series Designator
Unjf
NSN
5305-01-337-5986
Part Number
HT4075VS4-11-46
Description
Screw,close Tolerance
CAGE

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part HT4075VS4-11-46 NSN 5305-01-337-5986

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
Concept No.:
App. Key:
SS
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:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8109900000
  • SITC: 69987
  • End Use: Finished metal shapes
  • NAICS: 331491
  • USDA: 1

Freight Class: Zirconium and articles thereof nesoi

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