NSN 4820-01-131-7648 CKCNN04LCC, CKCNN04SCC, 20138

Product Details | SAFETY RELIEF VALVE

4820-01-131-7648 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Part Alternates: CKCNN04LCC, CKCNN04SCC, 20138, 20138F51, 20138H01S0030, 4820-01-131-7648, 01-131-7648, 4820011317648, 011317648

Valves | Valves, Nonpowered

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
48	15 MAY 1982	01-131-7648	05488 ( VALVE, SAFETY RELIEF )

Drawings & Photos | NSN 4820-01-131-7648

Part Number	Request Date	QTY	Origin
20138H01S0030	2021-07-186	1	DIBBS
CKCNN04LCC	2021-07-186	1	DIBBS
20138H01S0030	2021-03-87	2	DIBBS
CKCNN04LCC	2021-03-87	2	DIBBS
20138H01S0030	2020-01-23	2	DIBBS
CKCNN04LCC	2020-01-23	2	DIBBS
20138H01S0030	2019-05-143	2	DIBBS
CKCNN04LCC	2019-05-143	2	DIBBS
4820-01-131-7648	2018-10-291	3	DIBBS
4820-01-131-7648	2018-02-37	2	DIBBS

Cross Reference | NSN 4820-01-131-7648

Part Number	Cage Code	Manufacturer
20138	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20138F51	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20138H01S0030	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20138H01S0030	15187	PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM
CKCNN04LCC	5P967	DANTE VALVE COMPANY INC
CKCNN04LCC	65079	DANCO VALVE COMPANY
CKCNN04SCC	65079	DANCO VALVE COMPANY

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Related Products | NSN 4820-01-131-7648

4820-01-131-7650, 4820-01-131-7655, 4820-01-131-7695, 4820-01-131-7696, 4820-01-131-7702

Technical Data | NSN 4820-01-131-7648

Characteristic	Specifications
MATERIAL	STEEL UNS J03002 BODY STEEL COMP 304 FLOW CONTROL DEVICE STEEL COMP 304 SEAT STEEL COMP 304 STEM
STYLE DESIGNATOR	C1A ANGLE FLANGED ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE	3.250 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE	3.250 INCHES
VALVE SIZE	0.500 INCHES
FLOW CONTROL DEVICE	DISK
VALVE OPERATION METHOD	AUTOMATIC
CONNECTION TYPE	FLANGE ALL ENDS
FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER	3.500 INCHES ALL ENDS
NOMINAL THICKNESS	0.438 INCHES ALL ENDS
BOLT HOLE QUANTITY	4 ALL ENDS
BOLT HOLE NOMINAL DIAMETER	0.625 INCHES ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER	2.375 INCHES ALL ENDS
FLANGE FACE DESIGN	RAISED STRAIGHT ALL ENDS
RAISED FACE NOMINAL HEIGHT	0.062 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER	1.375 INCHES ALL ENDS
BONNET TYPE	INSIDE SPRING
BONNET ATTACHMENT METHOD	BOLTED
ADJUSTABLE PRESSURE RANGE	30.0 TO 34.0 POUNDS PER SQUARE INCH
III END ITEM IDENTIFICATION	LOS ANGELES CLASS SSN(688)

Restrictions/Controls & Freight Information | NSN 4820-01-131-7648

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.

Category	Code	Description
NMF Description	127220	PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating
Less than truck load rating	P	77.5
Water commodity Code	671	unknown
Originating Activity Code	AX	Defense Supply Center Columbus Columbus, OH 43216-5000
Air Dimension Code	A	Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity	B	Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 4820-01-131-7648

Navy

Category	Code	Description
Cognizance Codes	3B	Navy-owned stocks of field level repairable 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
Reparability	D	Field Level Reparables
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