RM22LH1660-26

View detailed technical data, stock status, and sourcing information for: RM22LH1660-26
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-058-1823

Item Name Code

29730

Assigment Date

01/01/1963 (63 years ago)

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

0.167 inches maximum washer outside diameter, prevailing torque all metal design locking feature, soluble lubricant lubrication, right-hand thread direction, 3b thread class

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
Washer Outside Diameter: 0.167 inches maximum
Lubrication: soluble lubricant
Overall Height: 0.080 inches minimum and 0.100 inches maximum
Nut Style: hexagon
Washer Thickness: 0.010 inches minimum
End Item Identification: w/s:support equipment, b-1 aircraft; test set, arm-155/156; test consoles, mini-sace; trainer, b-1b aircraft; engine, aircraft tf33-pw-102 (c-135e, ec-135h/k/p); missile, advance medium range air-to-air (amraam)/aim120a; fire control system, missile mk 74 (fcs); aircraft, (ac-130h, mc-130h, ec-130e, hc-130s; guided missile launching system, mk 26 (gmls); intermediate forward test equipment (ifte) system
Width Across Flats: 0.122 inches minimum and 0.127 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjc
Thread Quantity Per Inch: 56
Hardness Rating: 49.0 rockwell c maximum
Nominal Thread Size: 0.086 inches
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-814-4076	No Name Available	02/08/2025

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
10186988	Extended Washer Self-Locking Nut
2 0040-322	Extended Washer Self-Locking Nut
3204-0118-051	Extended Washer Self-Locking Nut
3205-0118-051	Extended Washer Self-Locking Nut
333-1471-010	Extended Washer Self-Locking Nut
4138-0020	Extended Washer Self-Locking Nut
5310PL0975660	Extended Washer Self-Locking Nut
FN12A-26	Extended Washer Self-Locking Nut
GN510B256	Extended Washer Self-Locking Nut
H14L02CW	Extended Washer Self-Locking Nut
LF52LH3324-26	Extended Washer Self-Locking Nut
MS 21042-02	Extended Washer Self-Locking Nut
MS21042-02	Extended Washer Self-Locking Nut
RM22LH1660-26	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-058-1823?

The FSCG of the NSN 5310-00-058-1823 is 5310

Does the NSN 5310-00-058-1823 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-058-1823 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 5310-00-058-1823 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-058-1823 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 5310-00-058-1823 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963