Close Tolerance Screw

HT308-7-23

HT308-7-23
(NSN) National Stock Number
5305-00-283-7496
Federal Supply Classification
5305 Screws
Item Name Code
29294
Schedule B Code
7318152000
Summary

3a thread class, right-hand thread direction, 0.574 inches minimum and 0.640 inches maximum thread length, 2.022 inches minimum and 2.068 inches maximum fastener length, flat countersunk head style, 0.880 inches minimum and 0.890 inches maximum head diameter

DAC HCC DMIL RNCC
4 - - 3
RNVC SADC MSDS RNAAC
2 - - SB
Identification

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.

INC FIIG Concept Condition
29294 A003B0 - 1
Specifications
Thread Class
3a
Details A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
Thread Direction
right-hand
Details The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
Thread Length
0.574 inches minimum and 0.640 inches maximum
Details A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
Fastener Length
2.022 inches minimum and 2.068 inches maximum
Details The dimension,measured along a line parallel to the longitudinal axis,from the largest bearing surface of the fastener head to the extreme opposite end,or as specifically designated for other type fasteners.
Head Style
flat countersunk
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the head.
Head Diameter
0.880 inches minimum and 0.890 inches maximum
Details The length of a straight line which passes through the center of a circular head,and terminates at the circumference.
Grip Diameter
0.4672 inches minimum and 0.4682 inches maximum
Details The length of a straight line which passes through the center of the grip,and terminates at the circumference.
Internal Drive Style
high-torque
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the internal drive.
Nominal Thread Diameter
0.438 inches
Details The nominal length of a straight line which passes through the center of the threaded portion,and terminates at the circumference.
Grip Length
1.428 inches minimum and 1.448 inches maximum
Details A measurement of the longest dimension of the grip,in distinction from width.
Thread Quantity Per Inch
20
Details The number of threads on the item per linear inch measured on a line parallel to the thread axis.
Countersink Angle
100.0 degrees nominal
Details The included angle of the countersink.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
23-105 fscm 76301 mfr ref single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Surface Treatment
cadmium overall
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Surface Treatment Document And Classification
ps 13145 fscm 76301 mfr ref single treatment response overall
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Thread Series Designator
unjf
Details A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
Specification/Standard Data
76301-st3-547 manufacturers standard
Details The document designator of the specification or standard which established the item of supply.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
HT308-7-23 L4528 4 - 3 2 - ZZ
HS2623-7223 17446 5 - 3 2 - ZZ
HS2623-7223 97928 5 - 5 9 - ZZ
HS2623-7Z23 97928 4 - 5 9 - SB
ST3M547-7-23 76301 2 - 7 2 - SB
66904H7-23 56878 4 - 3 2 - SB
66904H7-23 50392 4 - 5 9 - SB
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
48950 - W -
RVC WCC TCC SHC
- 713 Z 9

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Genuine Manufacturers Parts
  • 100% Product Inspection
  • 7 Year Sales Record Retention
  • Fast On-Time Delivery
  • HAZMAT Certified
  • Global Shipping
Manufacturer
HI-SHEAR CORPORATION
CAGE: 73197
TORRANCE , CA , 90505-5314
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 5305-00-283-7496
What is the NIIN of the NSN 5305-00-283-7496?
The National Item Identification Number (NIIN) of the NSN 5305-00-283-7496 is 00-283-7496
When the NSN 5305-00-283-7496 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Tue, Aug 28, 1973
Does the NSN 5305-00-283-7496 contain any precious metals?
Type/content is unknown
Does the NSN 5305-00-283-7496 contain any hazardous material?
No data in HMIRS

Can't Find It

If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.

Similar Products
Who we are?

We are a trusted provider of milspec and aerospace hardware, offering high-quality consumables and parts. With a commitment to excellence, we guarantee reliable and fast delivery through our network of logistics centers. Our mission is to support the aerospace industry with precision and efficiency.

Contact
3555 Agricultural Center Dr.
St. Augustine, FL, 32092
United States
© 2024 Aerospace Hardware Store, Inc. All rights reserved.
Made in USA