5305-01-148-2651

Find complete technical information, availability, and procurement data for: 5305-01-148-2651
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-148-2651

Item Name Code

22846

Assigment Date

03/03/1983 (43 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

flat chamfer head style, 2a thread class, 0.750 inches minimum and 0.752 inches maximum fastener length, 0.250 inches nominal 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: 2a
Thread Direction: right-hand
Thread Length: 0.250 inches nominal
Fastener Length: 0.750 inches minimum and 0.752 inches maximum
Head Style: flat chamfer
Head Diameter: 0.375 inches nominal
Head Height: 0.188 inches nominal
Shoulder Diameter: 0.249 inches minimum and 0.250 inches maximum first shoulder
Shoulder Length: 0.500 inches minimum and 0.502 inches maximum first shoulder
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 32
Criticality Code Justification: zzzy
Shoulder Shape: round first shoulder
Material: steel comp 303 overall
Surface Treatment: chromium overall
Special Test Features: special quality control testing
Surface Treatment Document And Classification: qq-c-320 class 2b fed spec single treatment response overall
Test Data Document: "81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: unf
Reference Number Differentiating Characteristics: as differentiated by material which must conform to ships parts control center special quality control provisions and certified free from mercury contamination

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
906E033 ITEM 23	Shoulder Screw
906E033-23	Shoulder Screw
938A813-15	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-148-2651?

The FSCG of the NSN 5305-01-148-2651 is 5305

Does the NSN 5305-01-148-2651 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-148-2651 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 5305-01-148-2651 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-148-2651 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 5305-01-148-2651 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Thu, Mar 3, 1983