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5305-00-766-2421

Find complete technical information, availability, and procurement data for: 5305-00-766-2421

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5305-00-766-2421
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-766-2421
Item Name Code
06657
Assigment Date
01/01/1960 (66 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.

3a thread class, 0.562 inches nominal fastener length, flat chamfer head style, 0.562 inches maximum thread length, right-hand thread direction

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
0.562 inches maximum
Fastener Length
0.562 inches nominal
Head Style
flat chamfer
Head Diameter
0.219 inches nominal
Head Height
0.086 inches nominal
Internal Drive Style
slot
Nominal Thread Diameter
0.138 inches
Thread Quantity Per Inch
32
Screw Material
steel comp 305 or steel comp 303 or steel comp 303se
Screw Surface Treatment
passivate
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-090-0585 No Name Available 11/21/2003

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
1808093-5 Machine Screw
241-609SS Machine Screw
92551060900 Machine Screw
MFFIL0-609SS Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-766-2421?
The FSCG of the NSN 5305-00-766-2421 is 5305
Does the NSN 5305-00-766-2421 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-766-2421 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 5305-00-766-2421 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-766-2421 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 5305-00-766-2421 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960

Professional Distribution

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