H55-4CW

View detailed technical data, stock status, and sourcing information for: H55-4CW
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-061-7325

Item Name Code

05277

Assigment Date

01/01/1963 (63 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, soluble lubricant lubrication, right-hand thread direction, hexagon nut style, 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
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.240 inches minimum and 0.328 inches maximum
Width Across Flats: 0.430 inches minimum and 0.439 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 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,ty 2,cl 3 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-207-8269	No Name Available	01/01/1960
5310-00-275-7199	No Name Available	01/01/1960
5310-00-282-0511	No Name Available	01/01/1960
5310-00-297-4076	No Name Available	09/01/1979
5310-00-497-3900	No Name Available	09/24/1996
5310-00-508-2026	No Name Available	03/20/2000
5310-00-807-4620	No Name Available	10/01/1982

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
13207E5500FN42	Hexagon Self-Locking Nut
27FH-428	Hexagon Self-Locking Nut
5310000617325	Hexagon Self-Locking Nut
5310PL0145332	Hexagon Self-Locking Nut
858956-00	Hexagon Self-Locking Nut
AN363-428	Hexagon Self-Locking Nut
F180-048	Hexagon Self-Locking Nut
H55-4CW	Hexagon Self-Locking Nut
MS21045-4	Hexagon Self-Locking Nut
YE3180	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-061-7325?

The FSCG of the NSN 5310-00-061-7325 is 5310

Does the NSN 5310-00-061-7325 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-061-7325 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 5310-00-061-7325 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-061-7325 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 5310-00-061-7325 was assigned to the Federal Catalog?

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