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5305-01-024-4750

Find complete technical information, availability, and procurement data for: 5305-01-024-4750

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5305-01-024-4750
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-024-4750
Item Name Code
06657
Assigment Date
07/12/1976 (50 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal 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. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

0.314 inches minimum and 0.364 inches maximum thread length, 3a thread class, right-hand thread direction, 0.574 inches minimum and 0.604 inches maximum fastener length, flat countersunk head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.314 inches minimum and 0.364 inches maximum
Fastener Length
0.574 inches minimum and 0.604 inches maximum
Head Style
flat countersunk
Head Diameter
0.344 inches minimum and 0.385 inches maximum
Internal Drive Style
high-torque
Nominal Thread Diameter
0.190 inches
Thread Quantity Per Inch
32
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Screw Material
steel comp 4140 or steel comp e4340 or steel comp 8740
Screw Material Document And Classification
mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response
Screw Surface Treatment
cadmium and chromate
Screw Surface Treatment Document And Classification
qq-p-416 ty 2 cl 2 fed spec single treatment response
Thread Series Designator
unjf
Specification/Standard Data
80205-nas1221 professional/industrial association standard

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
NAS1221-3-4T Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-024-4750?
The FSCG of the NSN 5305-01-024-4750 is 5305
Does the NSN 5305-01-024-4750 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-024-4750 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-01-024-4750 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-024-4750 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-01-024-4750 was assigned to the Federal Catalog?
It was assigned 50 years ago, on Mon, Jul 12, 1976

Professional Distribution

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Pricing

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ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Surplus 183
New Material 29
Total 212
Availability of this item was last updated on: 06/12/2026 03:06 AM EDT. Stock levels and pricing are subject to change.

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