M81511/21EH01S2

View detailed technical data, stock status, and sourcing information for: M81511/21EH01S2
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5935 Electrical Connectors

National Stock Number

5935-00-521-2561

Item Name Code

15093

Assigment Date

08/19/1974 (51 years ago)

An electrical fitting with electrical contacts, constructed to be affixed to the end of a cable, conduit, coaxial line, cord or wiring for convenience in joining with other electrical connector(s) or printed wiring board and is not designed to be mounted on a bulkhead, chasses, panel, printed wiring board, or the like. Excludes:jack, telephone; jack, tip; plug, telephone; plug tip; insert, electrical connector; connector body (as modified); and socket, plug-in, electronic components. See also lead assembly, electrical; wiring harness (as modified); and cable assembly (as modified). For items without inserts, see shell, electrical connector.

2a thread class, right-hand thread direction, 1.486 inches minimum and 1.551 inches maximum overall length, 1.554 inches minimum and 1.570 inches maximum overall height, straight shape, external coupling body style

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Body Style: straight shape, external coupling
Overall Length: 1.486 inches minimum and 1.551 inches maximum
Overall Height: 1.554 inches minimum and 1.570 inches maximum
Overall Width: 1.554 inches minimum and 1.570 inches maximum
Environmental Protection: moisture resistant and pressure proof and salt water resistant
Unthreaded Mounting Hole Diameter: 0.116 inches minimum and 0.126 inches maximum
Center To Center Distance Between Mounting Facilities Parallel To Height: 1.245 inches minimum and 1.255 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width: 1.245 inches minimum and 1.255 inches maximum
Distance From Mounting Shoulder To Front Face: 0.894 inches minimum and 0.906 inches maximum
Threaded Device Type: back shell
Mating End Quantity: 1
Contact Position Arrangement Style: 22-121 single mating end
Contact Removability: removable single mating end single contact grouping
Polarization Method: keyway or multiple keyway
Insert Position In Deg: 225.0 and 190.0 and 160.0 and 50.0
Shell Type: solid
Connector Locking Method: bayonet pin
Thread Quantity Per Inch: 28
Nominal Thread Size: 1.375 inches
Terminal Location: back single mating end single contact grouping
Contact Material: copper alloy single mating end single contact grouping
Contact Surface Treatment: gold single mating end single contact grouping
Contact Surface Treatment Document And Classification: mil-g-45204 ty 1 cl 1 mil spec single treatment response single mating end single contact grouping
Terminal Type: crimp single mating end single contact grouping
Shell Material: aluminum alloy 6061
Shell Surface Treatment: cadmium
Shell Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response
Included Contact Quantity: 121 single mating end single contact grouping
Included Contact Type: round socket single mating end single contact grouping
Precious Material And Location: c0ntact surfaces gold
Precious Material And Weight: 0.121 gold grains, troy
Precious Material: gold
Test Data Document: "81349-mil-c-81511 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
Thread Series Designator: un
Specification/Standard Data: 81349-mil-c-81511/21 government specification

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
M81511-21E22-121	Electrical Receptacle Connector
M81511/21EH01S2	Electrical Receptacle Connector

FAQs

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

What is the FSCG of the NSN 5935-00-521-2561?

The FSCG of the NSN 5935-00-521-2561 is 5935

Does the NSN 5935-00-521-2561 have a Schedule B code assigned?

Yes, the Schedule B code is 8538907080

Does NSN 5935-00-521-2561 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 5935-00-521-2561 contain precious materials?

Item contains gold.

Does NSN 5935-00-521-2561 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5935-00-521-2561 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Mon, Aug 19, 1974