NSN 5930-00-974-3978 2270853ISSUEB, 00-974-3978, 009743978
Product Details | STEPPING SWITCH
5930-00-974-3978 An electromagnetically actuated switch having contact wipers which are successively rotated over fixed bank contacts. The contact wipers are progressively advanced over the fixed bank contacts through a repetitive series of stepping operations. The stepping operation may be a continuous forward rotation acting through 360 degrees to return to its normal unoperated position or it may be designed to include an electromagnetic and/or mechanical means for releasing and resetting the switch to its released position for a subsequent operation. The contact wipers may be mechanically held in contact with the fixed bank contacts after the armature of the actuating coil has released. The switch may be released at the end of its travel or at any intermediate position. It includes items designed with two electromagnetic actuators that enable the switch to operate in either direction. For items having the dual function of a switch and a relay assembled together on a common mounting, see RELAY-SWITCH. For other than electromagnetically actuated switches whose contact wipers are manually rotated over fixed bank contacts, see SWITCH, ROTARY. Excludes RELAY, ROTARY and SWITCH, TELEPHONE (as modified).
Part Alternates: 2270853ISSUEB, 5930-00-974-3978, 00-974-3978, 5930009743978, 009743978
Electrical and Electronic Equipment Components | Switches
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | 01 JAN 1961 | 00-974-3978 | 26954 ( SWITCH, STEPPING ) |
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Related Products | NSN 5930-00-974-3978
Technical Data | NSN 5930-00-974-3978
| Characteristic | Specifications |
|---|---|
| CONTROL METHOD | REMOTE |
| BANK LEVEL QUANTITY | 8 |
| CONTACT QUANTITY PER BANK LEVEL | 52 |
| WIPER CONTACT QUANTITY PER BANK LEVEL | 1 |
| CONTACT CURRENT RATING | 3.0 AMPERES |
| BRIDGING LEVEL QUANTITY | 6 |
| NONBRIDGING LEVEL QUANTITY | 2 |
| MAGNETIC COIL QUANTITY | 1 |
| COIL TYPE | DRIVE |
| CURRENT TYPE | DC |
| VOLTAGE RATING | 48.0 VOLTS NOMINAL |
| OPERATING CURRENT RATING | 480.0 MILLIAMPERES NOMINAL |
| ELECTRICAL RESISTANCE | 100.0 OHMS NOMINAL |
| AUXILIARY OFF-NORMAL CONTACT ARRANGEMENT | 1C |
| AUXILIARY INTERRUPTER CONTACT ARRANGEMENT | 1C |
| DRIVE TYPE | INDIRECT |
| STEPPING DIRECTION | UNIDIRECTIONAL |
| OVERALL LENGTH | 6.875 INCHES NOMINAL |
| OVERALL WIDTH | 2.688 INCHES NOMINAL |
| OVERALL HEIGHT | 5.250 INCHES NOMINAL |
| MOUNTING METHOD | BASE |
| MOUNTING CONFIGURATION | THREE NO. 8/0.164 IN./-32 TAPPED MTG HOLES IRREGULARLY SPACED ON SWITCH FRAME |
| MANUFACTURERS CODE | 28528 |
| DESIGN CONTROL REFERENCE | 2270853ISSUEB |
Restrictions/Controls & Freight Information | NSN 5930-00-974-3978
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | P | There is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| Category | Code | Description |
|---|---|---|
| NMF Description | 061300 | CIRCUIT BREAKER/SWITCH NOI |
| Less than car load rating | P | 77.5 |
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 658 | unknown |
| Originating Activity Code | XX | |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | H | Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 5930-00-974-3978
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | X | SEMIACTIVE ITEM-NO REPLACEMENT (NON-STOCKED ITEMS) A potentially inactive NSN which must be retained in the supply system as an item of supply because (1) stocks of the item are on hand or in use below the wholesale level and (2) the NSN is cited in equipment authorization documents TO & E, TA, TM, etc., or in-use assets are being reported. 1. Items are authorized for central procurement but not authorized for stockage at wholesale level. 2. Requisitions for in-use replacement will be authorized in accordance with individual Military Service directives. 3. Requisitions may be submitted as requirements generate. Repetitive demands may dictate an AAC change to permit wholesale stockage. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |