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4820-01-177-8720
Stop-Check Valve
4820011778720 011778720
A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also VALVE (1), LIFT-CHECK and VALVE (1), STOP-LIFT-CHECK. View more Stop-Check Valve
November 2023
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RQST Updated Every Day 4820-01-177-8720 RQST NE Related Documents 4820-01-177-8720 2+ Documents ( More
RQST Updated Every Day 4820-01-177-8720 RQST NE Related Documents 4820-01-177-8720 1+ Documents ( More
Stop-Check Valve 4820011778720 011778720 Documents 4820-01-177-8720 1+ Documents ( More https//
of the Navy (DN)IZDiscontinued-Use 4820-01-177-8720Department of the Navy (DN)NLSuperseded By 4820-01-177-8720
Restrictions 4820-01-177-8720
4820-01-177-8720 is a Stop-Check Valve This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.
Management Data 4820-01-177-8720
- Effective Date
- Organization
- Unit of Issue
- Unit Price
- Qty Unit Pack
- Unit of Issue
- Nov 1999
- Department of the Navy (DN)
- EA
- Subscribe
- 1
- EA
- MOE
- USC
- Code
- Statement
- Order of Use
- Jump To Code
- Qty Per Assy
- UOM
- Technical Document
- Quantative Expression
- Code
- Department of the Navy (DN)
- I
- V
- Discontinued Without Replacement
- V
- Department of the Navy (DN)
- N
- N
- Disposal
- N
Navy
- Cognizance:
- 3H
- Special Material ID:
- SS
- An item is support of the SUBSAFE program that meets all the requirements for L1 coding. In addition, the installation of this item in critical (SUBSAFE) systems requires that the vital attributes of the item be pedigreed further by 100% non- destructive tests. These tests are primary radiography, but may include magnetic particle, dye penetrant, and/or ultrasonic testing. As of 8/1/00, NSNs with SMIC SS were re-identified to SMIC L1. Material with SMIC SS is still in the supply system.
- Issue, Repair, Requisition Restriction Code:
- 00
- No Restriction
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