2633-561-01 PC 221-2

View detailed technical data, stock status, and sourcing information for: 2633-561-01 PC 221-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-881-3258

Item Name Code

05277

Assigment Date

01/01/1962 (64 years ago)

0.626 inches minimum and 0.656 inches maximum nut height, 3b thread class, prevailing torque with nonmetallic insert locking feature, hexagon nut style, 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: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque with nonmetallic insert
Nut Style: hexagon
Nut Height: 0.626 inches minimum and 0.656 inches maximum
Width Across Flats: 0.865 inches minimum and 0.877 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 12
Nominal Thread Size: 0.562 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: nickel alloy 400 or nickel alloy r-405 nut
Material: plastic polyhexamethylene amide locking insert
Material Document And Classification: astm d4066,comp a,type 1 assn std single material response locking insert

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
09NE-092 MONEL	Hexagon Self-Locking Nut
09NE092	Hexagon Self-Locking Nut
2633-561-01 PC 221-2	Hexagon Self-Locking Nut
551-6406431-30	Hexagon Self-Locking Nut
801-6640811 PC 221-2	Hexagon Self-Locking Nut
MS17828-9C	Hexagon Self-Locking Nut
MS17828-PC	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-881-3258?

The FSCG of the NSN 5310-00-881-3258 is 5310

Does the NSN 5310-00-881-3258 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5310-00-881-3258 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 5310-00-881-3258 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-881-3258 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 5310-00-881-3258 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962