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NSN 4820-01-478-0818, 4820014780818
VALVE,SAFETY RELIEF

Federal Supply Classification
FSC 4820 - Valves, Nonpowered
National Item Identification Number
NIIN 014780818
Codification Country
United States
Item Name Code
INC 05488
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS® Summary

National Stock Number 4820-01-478-0818

National Stock Number (NSN) 4820-01-478-0818, or NIIN 014780818, (valve,safety relief) was assigned August 29, 2000 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

This NSN is unique to one weapons system.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2004, this NSN's acquisition method was noted as: Not established. Not established.

This NSN is assigned to Item Name Code (INC) 05488. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820014780818 does not contain precious metals.

This NSN is associated to Schedule B 8481400000: safety or relief valves. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.

This information was last updated on .


Technical Characteristics

ADJUSTABLE PRESSURE RANGE
(CQCY) +100.0 TO 108.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHOD
(ADST) BOLTED
BONNET TYPE
(ADSR) INSIDE SPRING
CONNECTION TYPE
(AWLS) UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE
(AHNC) SOCKET (TUBE) ALL ENDS
DISK LOADING METHOD
(ADSU) SPRING
FURNISHED ITEMS AND QUANTITY
(TMQY) 1 SPRING AND 2 TAILPIECE
FLOW CONTROL DEVICE
(ADQU) DISK
OPENING PRESSURE SETTING
(CSDC) 105.0 POUNDS PER SQUARE INCH
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS3660 FED SPEC ALL MATERIAL RESPONSES PACKING
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-C-20159 MIL SPEC ALL MATERIAL RESPONSES BODY
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-C-20159 MIL SPEC ALL MATERIAL RESPONSES SEAT
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-N-281 FED SPEC ALL MATERIAL RESPONSES FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-N-281 FED SPEC ALL MATERIAL RESPONSES STEM
MATERIAL
(MATT) COPPER ALLOY 962 BODY
MATERIAL
(MATT) COPPER ALLOY 962 SEAT
MATERIAL
(MATT) NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL
(MATT) NICKEL ALLOY STEM
MATERIAL
(MATT) PLASTIC POLYTETRAFLUOROETHYLENE PACKING
MAXIMUM OPERATING PRESSURE
(CQGM) 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP
(AEHZ) 150.0 DEG FAHRENHEIT SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED
(AAAR) 1.500 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE
(ADZH) BOLTED
SPECIAL FEATURES
(FEAT) THIS VALVE MEETS REQUIREMENTS OF MIL-V-24332, GRADE B, AS MODIFIED BY P555N21C-9. INLET AND OUTLET CONNECTIONS IAW BUSHIPS DRAWING 803-1385884, 1 1/2" SIZE.SPCLGHI-SHOCK TEST GAYNES TESTING LABORATORIES REPORT NO. 71305, APPROVED BY SUPSHIPS N. N. VA. LTR CVN SHCL/9480-249400-1 SER: 2810-3037 DATED 18 OCT 1971, LIGHTWEIGHT, CLASS 1, TYPE A, MOUNTING LOCATION: HULL; MOUNTING PLANE: BASE. VIBRATION TEST IAS MIL-STD-167, TYPE 1, GAYNES TESTING LABORATORIES REPORT NO. 67764 DATED 9 JUNE 1967. APPROVED BY SUPSHIPS LETTER SSN537/9600/1 SER. 252-780M DATED 11 JUNE 1967
VALVE OPERATION METHOD
(AQLR) AUTOMATIC
STYLE DESIGNATOR
(STYL) ANGLE
ADJUSTABLE PRESSURE RANGE
(CQCY) +100.0/+108.0 POUNDS PER SQUARE INCH
STYLE DESIGNATOR
(STYL) ERR-090
CONNECTION STYLE
(AHNC) SOCKET (TUBE) ERR-100

Manufacturer Part Numbers


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