NSN 4820-01-239-3612 249T18BB, 249T1-8BB, 249T18BBVM

Product Details | CHECK VALVE

4820-01-239-3612 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part Alternates: 249T18BB, 249T1-8BB, 249T18BBVM, 249T1-8BBVM, 4820-01-239-3612, 01-239-3612, 4820012393612, 012393612

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	28 AUG 1986	01-239-3612	05487 ( VALVE, CHECK )

Drawings & Photos | NSN 4820-01-239-3612

Part Number	Request Date	QTY	Origin
249T1-8BB	2020-04-114	2	DIBBS
249T1-8BB	2020-04-103	12	DIBBS
249T1-8BB	2020-03-86	5	DIBBS
249T1-8BB	2020-01-02	3	DIBBS
4820-01-239-3612	2018-11-317	19	DIBBS
4820-01-239-3612	2018-11-305	19	DIBBS
4820-01-239-3612	2018-07-210	14	DIBBS
4820-01-239-3612	2018-07-190	8	DIBBS
4820-01-239-3612	2018-06-179	8	DIBBS
4820-01-239-3612	2018-05-137	6	DIBBS
4820-01-239-3612	2018-05-126	6	DIBBS
4820-01-239-3612	2017-08-215	11	DIBBS
4820-01-239-3612	2017-07-191	1	DIBBS
4820-01-239-3612	2017-06-180	3	DIBBS
4820-01-239-3612	2017-06-155	2	DIBBS
4820-01-239-3612	2016-12-341	5	DIBBS
4820-01-239-3612	2016-09-251	2	DIBBS
4820-01-239-3612	2016-07-193	3	DIBBS
4820-01-239-3612	2016-06-181	3	DIBBS
4820-01-239-3612	2015-08-232	2	DIBBS
4820-01-239-3612	2014-01-09	11	DIBBS
4820-01-239-3612	2013-07-188	11	DIBBS

Cross Reference | NSN 4820-01-239-3612

Part Number	Cage Code	Manufacturer
249T1-8BB	91816	CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS
249T1-8BBVM	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG

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Related Products | NSN 4820-01-239-3612

4820-01-239-3613, 4820-01-239-3614, 4820-01-239-3619, 4820-01-239-3620, 4820-01-239-3633

Technical Data | NSN 4820-01-239-3612

Characteristic	Specifications
MATERIAL	STEEL COMP 316 BODY
STYLE DESIGNATOR	A6 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED	AIR 1ST RESPONSE CARBON DIOXIDE 2ND RESPONSE
MAXIMUM OPERATING TEMP	250.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD	AUTOMATIC
CONNECTION TYPE	THREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLE	B4 GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR	UNF ALL ENDS
NOMINAL THREAD SIZE	0.750 INCHES ALL ENDS
THREAD CLASS	3B ALL ENDS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
MOUNTING POSITION	HORIZONTAL OR VERTICAL
MINIMUM OPERATING TEMP	-40.0 DEG FAHRENHEIT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
MANUFACTURERS CODE	91816
DESIGN CONTROL REFERENCE	249T1-8BB

Restrictions/Controls & Freight Information | NSN 4820-01-239-3612

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
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	051080	FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating	W	Rating Variable
Water commodity Code	594	unknown
Originating Activity Code	HD	Naval Inventory Control Point Mechanicsburg, PA 17055-0788
Air Dimension Code	A	Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity	V	Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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 4820-01-239-3612

Navy

Category	Code	Description
Cognizance Codes	3B	Navy-owned stocks of field level repairable DLA material Naval Inventory Control Point, Mechanicsburg
Special Material ID	VM	Equipment and/or parts requiring special material control and quality assurance which support the non-magnetic signature of minesweepers.
Special Material Content	Y	Non-Magnetic (must remain free of strong magnetic field)
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	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