RM1801-126

View detailed technical data, stock status, and sourcing information for: RM1801-126
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-857-5975

Item Name Code

05277

Assigment Date

01/01/1962 (64 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

prevailing torque all metal design locking feature, hexagon nut style, 3b thread class, dry film lubricant lubrication, 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 all metal design
Lubrication: dry film lubricant
Nut Style: hexagon
Nut Height: 0.855 inches minimum and 0.891 inches maximum
Width Across Flats: 1.052 inches minimum and 1.064 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 16
Nominal Thread Size: 0.750 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416 fed spec single treatment response overall

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
38FH-1216	Hexagon Self-Locking Nut
MS21045L12	Hexagon Self-Locking Nut
NAS1022AM12	Hexagon Self-Locking Nut
RM1801-126	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-857-5975?

The FSCG of the NSN 5310-00-857-5975 is 5310

Does the NSN 5310-00-857-5975 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-857-5975 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 5310-00-857-5975 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-857-5975 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 5310-00-857-5975 was assigned to the Federal Catalog?

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