M81511/21EF03S1

View detailed technical data, stock status, and sourcing information for: M81511/21EF03S1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5935 Electrical Connectors

National Stock Number

5935-00-257-0328

Item Name Code

15093

Assigment Date

01/12/1972 (54 years ago)

2a thread class, right-hand thread direction, straight shape, external coupling body style, 1.335 inches minimum and 1.351 inches maximum overall height, 1.486 inches minimum and 1.551 inches maximum overall length

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: 1.335 inches minimum and 1.351 inches maximum
Overall Width: 1.335 inches minimum and 1.351 inches maximum
Environmental Protection: pressure proof
Unthreaded Mounting Hole Diameter: 0.116 inches minimum and 0.126 inches maximum
Center To Center Distance Between Mounting Facilities Parallel To Height: 1.057 inches minimum and 1.067 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width: 1.057 inches minimum and 1.067 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: 18-21 f03 single mating end
Contact Removability: removable single mating end single contact grouping
Polarization Method: key, multiple key groove
Insert Position In Deg: 67.0 and 164.0 and 218.0 and 280.0
Shell Type: solid
Connector Locking Method: bayonet pin
Thread Quantity Per Inch: 28
Nominal Thread Size: 1.125 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,type 1,class 2 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: chromium
Shell Material Document And Classification: qq-a-367,comp 6061,t6 fed spec single material response
Included Contact Quantity: 21 single mating end single contact grouping
Included Contact Type: round socket single mating end single contact grouping
Precious Material And Location: contact surfaces gold
Precious Material And Weight: 0.021 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
348-30E18-21S1	Electrical Receptacle Connector
499-009-127	Electrical Receptacle Connector
M81511-21E18-21S1	Electrical Receptacle Connector
M81511/21EF03S1	Electrical Receptacle Connector

FAQs

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

What is the FSCG of the NSN 5935-00-257-0328?

The FSCG of the NSN 5935-00-257-0328 is 5935

Does the NSN 5935-00-257-0328 have a Schedule B code assigned?

Yes, the Schedule B code is 8538907080

Does NSN 5935-00-257-0328 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 5935-00-257-0328 contain precious materials?

Item contains gold.

Does NSN 5935-00-257-0328 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 5935-00-257-0328 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Jan 12, 1972