5305-00-442-0837

Find complete technical information, availability, and procurement data for: 5305-00-442-0837
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-442-0837

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes:packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

1.990 inches minimum and 2.010 inches maximum fastener length, 3a thread class, right-hand thread direction, hexagon head style, 1.219 inches minimum and 1.281 inches maximum thread length

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: 1.219 inches minimum and 1.281 inches maximum
Fastener Length: 1.990 inches minimum and 2.010 inches maximum
Head Style: hexagon
Head Height: 0.070 inches minimum and 0.080 inches maximum
Width Between Flats: 0.367 inches minimum and 0.375 inches maximum
Hole Diameter: 0.047 inches nominal
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Hole Quantity: 1
Thread Quantity Per Inch: 32
Hardness Rating: 32.0 rockwell c minimum and 36.0 rockwell c maximum
Screw Material: steel comp 416f
Screw Material Document And Classification: ams 5610 assn std single material response
Screw Surface Treatment: passivate
Head Hole Configuration Style: round
Thread Series Designator: unf

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
00344	Machine Screw
10-33903	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-442-0837?

The FSCG of the NSN 5305-00-442-0837 is 5305

Does the NSN 5305-00-442-0837 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-442-0837 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 5305-00-442-0837 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-442-0837 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 5305-00-442-0837 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963