M81659-21B1-0052

View detailed technical data, stock status, and sourcing information for: M81659-21B1-0052
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5935 Electrical Connectors

National Stock Number

5935-01-030-6251

Item Name Code

15093

Assigment Date

11/09/1976 (49 years ago)

An electrical fitting with electrical contacts constructed to be affixed to the end of a cable, conduit, coaxial line, cord, wire (includes printed/etched), printed wiring board, or the like for convenience in joining with another electrical connector or printed wiring board. It is designed to be mounted on a bulkhead, chassis, panel, wall, printed wiring board, or the like. Excludes:lampholder; jack,telephone; jack,tip; insert electrical connector; insert module,electrical connector; connector body (as modified) and socket,plug-in electronic components. See also wiring harness (as modified) and cable assembly (as modified). For items with termination wires of more than four inches in length, see lead assembly,electrical. For items without inserts, see shell,electrical connector.

1.625 inches maximum overall length, 2b thread class, right-hand thread direction, 3.105 inches minimum and 3.115 inches maximum overall height, straight shape 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: 2b
Thread Direction: right-hand
Body Style: straight shape
Overall Length: 1.625 inches maximum
Overall Height: 3.105 inches minimum and 3.115 inches maximum
Overall Width: 2.485 inches minimum and 2.515 inches maximum
Environmental Protection: humidity resistant and shock proof and salt water resistant and vibration resistant
Center To Center Distance Between Mounting Facilities Parallel To Height: 2.782 inches minimum and 2.786 inches maximum
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width: 1.435 inches minimum and 1.439 inches maximum
Distance From Mounting Shoulder To Front Face: 0.757 inches nominal
Threaded Device Type: mounting hole
Mating End Quantity: 2
Contact Removability: removable all mating ends all contact groupings
Polarization Method: 2 polarization posts
Shell Type: solid
Nominal Thread Size: 0.112 inches
Terminal Location: back all mating ends all contact groupings
Terminal Type: crimp all mating ends all contact groupings
Shell Material: aluminum alloy
Shell Surface Treatment: cadmium
Shell Surface Treatment Document And Classification: qq-p-416,type 2 fed spec single treatment response
Included Contact Quantity: 248 all mating ends all contact groupings
Included Contact Type: round socket all mating ends all contact groupings
Test Data Document: "81349-mil-c-81659 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: unc
Specification/Standard Data: 81349-mil-c-81659/21 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
M81659-21B1-0052	Electrical Receptacle Connector
MILC81659-21	Electrical Receptacle Connector

FAQs

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

What is the FSCG of the NSN 5935-01-030-6251?

The FSCG of the NSN 5935-01-030-6251 is 5935

Does the NSN 5935-01-030-6251 have a Schedule B code assigned?

Yes, the Schedule B code is 8538907080

Does NSN 5935-01-030-6251 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 5935-01-030-6251 contain precious materials?

Precious metal content is unknown

Does NSN 5935-01-030-6251 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 5935-01-030-6251 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Tue, Nov 9, 1976