ORDER BY PHONE (619) 331-9599      Contact Us      Request Quote
facebook
NationalStockNumber.org

Close Tolerance Screw NSN 5305-00-933-7291

Item Description

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.

NSN 5305-00-933-7291 NSN: 5305-00-933-7291

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.380 inches and 0.410 inches
Fastener Length
Between 1.260 inches and 1.280 inches
Head Style
Flat countersunk
Head Diameter
Between 0.464 inches and 0.510 inches
Grip Diameter
Between 0.2485 inches and 0.2495 inches
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Grip Length
Between 0.870 inches and 0.880 inches
Width Across Flats
Between 0.095 inches and 0.097 inches
Thready Qty Per Inch (tpi)
28
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Surface Finish
63.0 microinches bearing surface of head
Special Features
Drilled hole thd end 0.122 to 0.142 in. Dia, 0.200 in. Deep
Material
Steel comp 4130 or steel comp 4140 or steel comp 8740
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification all treatment responses
Thread Series Designator
Unjf
FSC
5305 Screws
NIIN
009337291
NSN
5305009337291

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
HL21PB8-14
Cage Code:
73197
Status:
A
MSDS:
Part Number:
BACB30JC8-14
Cage Code:
06725
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318152000
  • NAICS: 332722
  • SITC: 69421
  • Description: Bolts and bolts and their nuts or washers exported in the same shipment
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-00-933-7291
What are the manufacturers of nsn 5305009337291?
Does this nsn 5305009337291 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305009337291
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.
Does nsn 5305009337291 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305009337291 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305009337291?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
29294
FIIG:
A003B0
App. Key:
SS
Cond. Code:
1
Status:
A

What do you get when you order from nationalstocknumber.org?

  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
ASA Aviation Suppliers Association Member Logo
NQA AS 9120 Suppliers Logo
ITAR Registered International Traffic in Arms Regulations Logo