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4820-01-256-0290

Pressure Relief Safety Head

4820012560290 012560290 MRK-2"-450PSIG/72DEGF-316ST D3020

An item of varying shape and size consisting of a metallic body which incloses a nonreusable metallic or nonmetallic disk(s), which is designed and calibrated to burst at a given pressure. It may be used independently, or in conjunction with relief valves to relieve overpressure, and to protect relief valve(s) from corrosive conditions. Excludes VALVE, SAFETY RELIEF and PLUG, FUSIBLE. For items furnished with a disk, see HEAD AND DISK, SAFETY, PRESSURE RELIER. View more Pressure Relief Safety Head

4820-01-256-0290 HEAD,SAFETY,PRESSURE RELIEF 4820012560290 012560290

Managed by United States
NSN Created on 30 May 1987
Data Last Changed
May 2023
NATO Update Count
5
NATO Data Quality
4820-01-256-0290 HEAD,SAFETY,PRESSURE RELIEF 4820012560290 012560290 1/1
NSN 4820-01-256-0290 (Generic Image) 1/1

4820-01-256-0290 Stock and Availability Marketplace 4820-01-256-0290

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4820-01-256-0290 Demil Restrictions 4820-01-256-0290

DEMIL: F | DEMILI: | CRITICALITY: C | HMIC: N | PMIC: A | EDC: | ADPEC: 0

4820-01-256-0290 is a Pressure Relief Safety Head that has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined. This item is a US Munitions List or Commerce Control List Item where the Item Manager, Equipment Specialist or Product Specialist must provide special demilitarization instructions. This item is not suspected to be hazardous. This item does not contain a precious metal.

4820-01-256-0290 HTS and ScheduleB Import and Export 4820-01-256-0290

4820-01-256-0290 End Users End Users 4820-01-256-0290

US Navy (N1HE)
Effective Date:
1 Apr 1991
Supplementary Receivers:
GG

4820-01-256-0290 Management Data Management Data 4820-01-256-0290

Effective Date
Organization
Unit of Issue
Unit Price
Qty Unit Pack
Oct 2022
Department of the Navy (DN)
EA
Subscribe
1
Oct 2021
Department of the Navy (DN)
EA
Subscribe
1
Oct 2020
Department of the Navy (DN)
EA
Subscribe
1
Oct 2019
Department of the Navy (DN)
EA
Subscribe
1
MOE
USC
Code
Statement
Order of Use
Jump To Code
Qty Per Assy
UOM
Technical Document
Quantative Expression
Department of the Navy (DN)
I
E
Replaced By 4820-01-337-4436
Department of the Navy (DN)
N
E
Replaced By 4820-01-337-4436

Navy Navy

Cognizance:
1H
Consumable material assigned to NAVICP MECH for inventory management
Naval Inventory Control Point, Mechanicsburg
Special Material ID:
X3
Nuclear Reactor Plant (NRP) material under the technical cognizance of the NAVSEA 08 special designed, manufactured and/or treated for use in a NRP or controls thereof. This category includes all other NRP items which are not coded X2 or X4.
Issue, Repair, Requisition Restriction Code:
C0
Critical item. Do not issue. Refer all requests to cognizant manager

4820-01-256-0290 Related Items NATO Stock Numbers Related to 4820-01-256-0290

4820-01-256-0290 Freight Data Freight Information 4820-01-256-0290

4820-01-256-0290 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 051080. A Sub NMFC of Z. It has a NMFC Description of FAUCETS,BIBCOCKS,GATES VALVES. 4820-01-256-0290 is rated as a variable freight class when transported by Less-Than Truckload (LTL) freight. 4820-01-256-0290 is rated as class 60 when transported by Less-Than Carload (LCL) rail or ocean freight. It has a Uniform Freight Classification (UFC) number of 29300 which rates the freight between FCL and LCL. It has a Water Commodity Code (WCC) of 594 for ocean manifesting and military sealift. 4820-01-256-0290 is not classified as a special type of cargo when transported by water. 4820-01-256-0290 is not a consolidation and does not exceed 84" in any dimension. It should be compatible with a standard 72" Aircraft Cargo Door when transported by air.

4820-01-256-0290 Packaging Data Packaging Data 4820-01-256-0290

Responsible Activity
Packaging Data Source
Primary Inventory Control Activity (PICA)
Packaging Data does not meet current MIL-STD-2073-1E
Storage Environment
Unheated General Purpose

Item Pack Level (Unpackaged)

Item Size
Item Weight
Characteristics
Weight/Dimensions Category
Fragility
Item Preservation
--
--
--
Over 10lb
Less than 85G
Special Requirement

Unit Pack Level (Packaged)

Quantity per Pack
Unit Size
Unit Weight
Unit Cube
Preservation Method
Cleaning/Drying
1
4.0" H x 4.0" W x 1.0" L
--
--
Physical Protection
Any Suitable Process
Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking
No Requirement
MIL-P-130, Laminated and Creped Wrapping Paper
No Requirement
Not Applicable
UU-B-36, Bags, Paper Grocers
--

Intermediate Pack Level

Quantity of Unit Packs
Container
ASTM-D5118, Type CF, Class Weather-Resistant, Corrugated Fiberboard Box