5305-01-088-7955

Find complete technical information, availability, and procurement data for: 5305-01-088-7955
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-088-7955

Item Name Code

06673

Assigment Date

01/19/1980 (46 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

1.000 inches nominal fastener length, knurled no. 4 head style, 0.630 inches nominal thread length, 2a thread class, 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: 2a
Thread Direction: right-hand
Thread Length: 0.630 inches nominal
Fastener Length: 1.000 inches nominal
Head Style: knurled no. 4
Head Diameter: 0.500 inches nominal
Head Height: 0.250 inches nominal
First Diameter From Head: 0.380 inches nominal
Second Diameter From Head: 0.280 inches nominal
Third Diameter From Head: 0.380 inches nominal
Fourth Diameter From Head: 0.175 inches minimum and 0.185 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.178 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 0.240 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Third Diameter: 0.303 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter: 0.373 inches nominal
Point Style: flat
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Externally Relieved Body Diameter Quantity: 4
Material: steel comp 303 or steel comp 303se overall
Material Document And Classification: astm a582 assn std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 cl1 fed spec single treatment response overall
Thread Series Designator: unc

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:

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810AS1275	Thumbscrew

FAQs

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

What is the FSCG of the NSN 5305-01-088-7955?

The FSCG of the NSN 5305-01-088-7955 is 5305

Does the NSN 5305-01-088-7955 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-088-7955 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 5305-01-088-7955 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-088-7955 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 5305-01-088-7955 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Sat, Jan 19, 1980