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4820-01-268-3488

Safety Relief Valve

4820012683488 012683488 1856M-OL-1/2X3/4-62.5PSI 18252-F(62.5PSI) 1896M-OL-1/2C3/4-62.5PSI(SPCLN)

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. View more Safety Relief Valve

Managed by United States

NSN Created on 28 Nov 1987

Data Last Changed
May 2023

NATO Update Count
5

NATO Data Quality

4820-01-268-3488 VALVE,SAFETY RELIEF 4820012683488 012683488 1/1 — NSN 4820-01-268-3488 (Generic Image) 1/1

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Restrictions 4820-01-268-3488

4820-01-268-3488 is a Safety Relief Valve 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.

Import and Export 4820-01-268-3488

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End Users 4820-01-268-3488

US Navy (N1HE)
Effective Date:: 1 Apr 1991
Supplementary Receivers:: GG; AMC 1 AMSC G IMC P IMCACTY HX

Approved Sources 4820-01-268-3488

Part Number
Manufacturer
Status
1856M-OL-1/2X3/4-62.5PSI: 72352 - Curtiss-Wright Flow Control (Active); Incomplete Reference; RNCC 3 RNVC 1 DAC G
18252-F(62.5PSI): 72352 - Curtiss-Wright Flow Control (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC G
1896M-OL-1/2C3/4-62.5PSI(SPCLN): 72352 - Curtiss-Wright Flow Control (Active); Incomplete Secondary Reference; RNCC 5 RNVC 1 DAC G

Datasheet 4820-01-268-3488

Characteristic
Specifications
FIIG: A046B0
Criticality Code Justification [CRTL]: Zzzy
Reference Number Differentiating Characteristics [ZZZY]: Material Will Be In Accordance With Ships Parts Control Center Activity Hx Quality Control,Manufacturing And Testing Specifications
Specification/Standard Data [ZZZK]: 96906-Mil-Std-129 Government Standard And 96906-Mil-Std-767 Government Standard And 96906-Aor-767-1 Government Standard And 81349-Mil-I-45208 Government Specification

Management Data 4820-01-268-3488

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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

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:

BL: Submit/refer requisitions to NAVICP MECH. Centralized control for issue of repair parts for specific programs/equipment

NATO Stock Numbers Related to 4820-01-268-3488

4820-14-561-1656 4820-12-334-7815 4820-34-037-9166 4820-99-311-3098 4820-22-620-5578 4820-12-394-4232 4820-14-560-5277 4820-12-376-4609 4820-12-174-3113 4820-25-149-3059 4820-66-125-0437 4820-12-307-2275 4820-99-762-4698 4820-17-108-9424 4820-13-120-5910 4820-12-376-3740 4820-12-334-0478 4820-12-342-1920

Freight Information 4820-01-268-3488

4820-01-268-3488 has freight characteristics.It has a National Motor Freight Classification (NMFC) of 127220. A Sub NMFC of X. It has a NMFC Description of PRESSURE REG/RED/RELIEF VALVES NOI. 4820-01-268-3488 is rated as class 77.5 when transported by Less-Than Truckload (LTL) freight. It has a Uniform Freight Classification (UFC) number of 64490 which rates the freight between FCL and LCL. 4820-01-268-3488 has a variance between NMFC and UFC when transported by rail and the description should be consulted. It has a Water Commodity Code (WCC) of 594 for ocean manifesting and military sealift. 4820-01-268-3488 is not classified as a special type of cargo when transported by water. 4820-01-268-3488 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.

Packaging Data 4820-01-268-3488

Responsible Activity
Packaging Data Source: Primary Inventory Control Activity (PICA); Packaging Data does not meet current MIL-STD-2073-1E

Storage Environment: Heated General Purpose – Heated 40 F and above

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; --; --; --; --; Special Requirements

Preservation Material
Wrapping Material
Cushioning/Dunnage
Cushioning Thickness
Container
Special Marking: Special Requirement; Special Requirements – see Specific Instructions or Drawings provided; Special Requirements. See Specific Instructions or Drawings Provided; Special Requirements. See Specific Instructions or Drawings Provided; Special requirement – See specific instructions or drawings provided; --

Intermediate Pack Level

Quantity of Unit Packs
Container: Special requirement – See specific instructions or drawings provided