77377-12

View detailed technical data, stock status, and sourcing information for: 77377-12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-055-7766

Item Name Code

15893

Assigment Date

02/11/1978 (48 years ago)

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes:collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

1.270 inches maximum nut diameter, dry film lubricant lubrication, prevailing torque all metal design locking feature, 3b 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: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Lubrication: dry film lubricant
Nut Diameter: 1.270 inches maximum
Nut Height: 0.608 inches maximum
Temp Rating: 450.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 16
Hardness Rating: 38.0 rockwell c minimum and 46.0 rockwell c maximum
Nominal Thread Size: 0.750 inches
Material: steel comp 8740 overall
Material Document And Classification: ams 6322 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,type ii,cl 2 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
77377-12	Spline Self-Locking Nut
C7530-12	Spline Self-Locking Nut
LH11922-12	Spline Self-Locking Nut
SF50324-12	Spline Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-055-7766?

The FSCG of the NSN 5310-01-055-7766 is 5310

Does the NSN 5310-01-055-7766 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-055-7766 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 5310-01-055-7766 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-055-7766 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 5310-01-055-7766 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sat, Feb 11, 1978