581-8843219-127

View detailed technical data, stock status, and sourcing information for: 581-8843219-127
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-721-5370

Item Name Code

18257

Assigment Date

06/17/2024 (2 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

2.75 inches minimum thread length, hexagon head style, 5.00 inches nominal fastener 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: 2.75 inches minimum
Fastener Length: 5.00 inches nominal
Head Style: hexagon
Head Height: 0.749 inches minimum and 0.876 inches maximum
Width Between Flats: 1.812 inches minimum and 1.875 inches maximum
Nominal Thread Diameter: 1.25 inches
Thread Quantity Per Inch: 7
Minimum Tensile Strength: 135000 pounds per square inch
Hardness Rating: 24.0 rockwell c minimum and 35.0 rockwell c maximum overall
Minimum Yield Strength: 85000 pounds per square inch
Part Name Assigned By Controlling Agency: hex cap screw
Material: nickel alloy overall
Material Document And Classification: astm f467 american society for testing and materials (astm) single material response or q-n-286 fed spec 13th material response overall
Thread Series Designator: unc
Specification/Standard Data: 81349-mil-dtl--1222j government specification

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
581-8843219-127	Hexagon Head Cap Screw
LOA037021-127	Hexagon Head Cap Screw
M1222RN20C280NCNN	Hexagon Head Cap Screw
R6111401-127	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-721-5370?

The FSCG of the NSN 5305-01-721-5370 is 5305

Does the NSN 5305-01-721-5370 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-721-5370 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 5305-01-721-5370 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-721-5370 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 5305-01-721-5370 was assigned to the Federal Catalog?

It was assigned 2 years ago, on Mon, Jun 17, 2024