5305-01-578-2252

Find complete technical information, availability, and procurement data for: 5305-01-578-2252
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-578-2252

Item Name Code

29294

Assigment Date

09/30/2009 (16 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

flat countersunk head style, right-hand thread direction, 0.276 inches nominal thread length, 0.886 inches minimum and 0.916 inches maximum fastener length, 3a thread class

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: 0.276 inches nominal
Fastener Length: 0.886 inches minimum and 0.916 inches maximum
Head Style: flat countersunk
Head Diameter: 0.328 inches minimum and 0.385 inches maximum
Grip Diameter: 0.188 inches minimum and 0.189 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.625 inches nominal
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: screw machine flat 100 degrees head close tolerance short thread offset cruciform 160 ksi
Special Features: item has drilled shank
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
Surface Treatment: cadmium and chromate overall
Thread Series Designator: unjf

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
NAS1153-10D	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-578-2252?

The FSCG of the NSN 5305-01-578-2252 is 5305

Does the NSN 5305-01-578-2252 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-578-2252 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 5305-01-578-2252 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-578-2252 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 5305-01-578-2252 was assigned to the Federal Catalog?

It was assigned 16 years ago, on Wed, Sep 30, 2009