NSN 5930-01-251-0491 C78758, C7875-8, 1173T1769

Product Details | THERMOSTATIC SWITCH

5930-01-251-0491 A switch that is actuated by changes in ambient temperature. Excludes CIRCUIT BREAKER; CONTROL, TEMPERATURE (as modified); FUSE (as modified); PROTECTOR, THERMAL-OVERLOAD, ELECTRICAL MOTOR; RELAY, THERMAL; and THERMOSTAT, FLOW CONTROL. See also CONTROL, TEMPERATURE (as modified) and REGULATOR, TEMPERATURE (as modified).

Part Alternates: C78758, C7875-8, 1173T1769, 1173T176-9, 150T414, 5930-01-251-0491, 01-251-0491, 5930012510491, 012510491

Electrical and Electronic Equipment Components | Switches

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
59	11 MAR 1987	01-251-0491	00451 ( SWITCH, THERMOSTATIC )

Drawings & Photos | NSN 5930-01-251-0491

Part Number	Request Date	QTY	Origin
1173T176-9	2025-08-230	30	DIBBS
1173T176-9	2025-08-219	30	DIBBS
1173T176-9	2025-06-177	1	DIBBS
1173T176-9	2024-07-207	20	DIBBS
1173T176-9	2023-11-310	16	DIBBS
1173T176-9	2023-10-299	16	DIBBS
5930-01-251-0491	2022-11-322	3	ID
1173T176-9	2020-10-294	30	DIBBS
1173T176-9	2020-06-170	21	DIBBS
5930-01-251-0491	2018-09-256	23	DIBBS
5930-01-251-0491	2018-02-46	17	DIBBS
5930-01-251-0491	2016-10-280	18	DIBBS
5930-01-251-0491	2013-02-53	23	DIBBS
5930-01-251-0491	2012-08-243	15	DIBBS
5930-01-251-0491	2010-07-210	9	DIBBS
5930-01-251-0491	2010-06-165	15	DIBBS
5930-01-251-0491	2010-05-121	7	DIBBS
5930-01-251-0491	2010-04-104	4	DIBBS
5930-01-251-0491	2010-03-85	4	DIBBS
5930-01-251-0491	2008-11-318	38	DIBBS
5930-01-251-0491	2008-08-218	7	DIBBS
5930-01-251-0491	2008-07-203	2	DIBBS
5930-01-251-0491	2008-03-79	12	DIBBS
5930-01-251-0491	2007-05-130	15	DIBBS
5930-01-251-0491	2007-03-75	7	DIBBS
5930-01-251-0491	2006-02-39	12	DIBBS

Cross Reference | NSN 5930-01-251-0491

Part Number	Cage Code	Manufacturer
1173T176-9	98087	ITT CORPORATION DBA ITT AEROSPACE CONTROLS UNIT S
150T414	09049	CUSTOM CONTROL SENSORS, INC. DBA CUSTOM AVIATION SUPPLY
C7875-8	81755	LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS

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Related Products | NSN 5930-01-251-0491

5930-01-251-0492, 5930-01-251-0504, 5930-01-251-0505, 5930-01-251-0506, 5930-01-251-0507

Technical Data | NSN 5930-01-251-0491

Characteristic	Specifications
STYLE DESIGNATOR	53 CYLINDRICAL W/FLANGE
OVERALL LENGTH	3.000 INCHES MAXIMUM
WIDTH ACROSS FLATS	0.810 INCHES NOMINAL
BODY DIAMETER	0.200 INCHES MAXIMUM
BODY LENGTH	0.950 INCHES MINIMUM AND 1.270 INCHES MAXIMUM
NONPILE-UP CONTACT ARRANGEMENT	1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
CONTACT ACTION STIMULUS	INCREASE
CONTACT ADJUSTABILITY	ACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE
CONTACT STIMULUS RATING	310.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 270.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT
CONTACT VOLTAGE RATING IN VOLTS	28.0 DC AT SEA LEVEL SINGLE VOLTAGE
CONTACT LOAD CURRENT RATING	1.0 AMPERES INDUCTIVE LOAD SINGLE VOLTAGE
OPERATING TEMP RATING	-65.0 DEG FAHRENHEIT MINIMUM AND 350.0 DEG FAHRENHEIT MAXIMUM
MEDIA FOR WHICH DESIGNED	GAS
TEMP SENSING ELEMENT TYPE	BULB
TERMINAL TYPE	CONNECTOR, RECEPTACLE
MOUNTING METHOD	THREADED BUSHING
THREAD SERIES DESIGNATOR	UNEF SINGLE THREADED BUSHING
NOMINAL THREAD SIZE	0.562 INCHES SINGLE THREADED BUSHING
THREAD CLASS	3A SINGLE THREADED BUSHING
THREAD LENGTH	0.350 INCHES NOMINAL SINGLE THREADED BUSHING

Restrictions/Controls & Freight Information | NSN 5930-01-251-0491

Restrictions
Freight

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:	Q	Strategic List Item (SLI). Demilitarization not required. SLI are non-MLI(Munitions List Items) controlled by the U.S. Dept. of Commerce through the Export Administration Regulations (EAR) and indicated on the Commerce Control List (CCL). Each CCL entry is preceded by a four-digit Export Control Commerce Control List Item (CCLI) – MUT to the point of scrap required outside the United States. Inside the United States, MUT is required when the DEMIL integrity code (IC) is “3” and MUT is not required when the DEMIL IC is “6.”
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.

Category	Code	Description
NMF Description	061300	CIRCUIT BREAKER/SWITCH NOI
Less than car load rating
Less than truck load rating	P	77.5
Water commodity Code	658	unknown
Originating Activity Code	TH	Defense Supply Center Columbus Columbus, OH 43215
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 5930-01-251-0491

Air Force

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Materiel Management Aggregation Code	EH	SX:ELECTRONIC COMPONENTS
Price Validation	N	The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM. The price has not been analyzed or reviewed for accuracy. ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
Acquisition Advice Codes	Z	INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each