MS51865-7C

View detailed technical data, stock status, and sourcing information for: MS51865-7C
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-500-1632

Item Name Code

05275

Assigment Date

07/06/1974 (52 years ago)

dry film lubricant lubrication, cap nut style, right-hand thread direction, 2b thread class, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design or prevailing torque with nonmetallic insert
Lubrication: dry film lubricant
Nut Style: cap
Nut Height: 0.470 inches nominal
Width Across Flats: 0.428 inches minimum and 0.437 inches maximum
Temp Rating: 250.0 fahrenheit maximum
Thread Series: unc
Thread Quantity Per Inch: 20
Hardness Rating: 28.0 rockwell c maximum
Nominal Thread Size: 0.250 inches
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 110.0 microinches
Material: plastic polyamide (nylon) locking insert
Material: steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 nut
Surface Treatment: passivate overall except insert
Surface Treatment Document And Classification: qq-p-35,ty 2 fed spec single treatment response overall except 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
MS51865-7C	Cap Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-500-1632?

The FSCG of the NSN 5310-00-500-1632 is 5310

Does the NSN 5310-00-500-1632 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-500-1632 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 5310-00-500-1632 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-500-1632 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 5310-00-500-1632 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sat, Jul 6, 1974