PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

680-3CPValve,check

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-043-1958 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-043-1958 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-043-1958. Primary manufacturer part number: 680-3CP.
Features
  • Valve,check — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
  • 2 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-043-1958, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-043-1958
Primary Part Number680-3CP
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-010-2592102592 INTERCHANGEABLE
Setscrew
General Motors Llc Dba General Motors Llc
2010-00-036-5690533PC13T013CAND18 INTERCHANGEABLE
Lever,gear
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
5940-00-236-7218 INTERCHANGEABLE
Terminal,lug
4810-00-303-11516803 INTERCHANGEABLE
Valve,linear,directional Control
Harbormaster Marine, Inc
4810-00-375-9824P155-2103 INTERCHANGEABLE
Valve,linear,directional Control
Hunt Valve Company, Inc.
2510-00-507-38309M798-1 INTERCHANGEABLE
Shock Absorber,direct Action
Maremont Corp
6240-00-739-0961 INTERCHANGEABLE
Lamp,incandescent
3110-00-799-896639SB16 INTERCHANGEABLE
Bearing,ball,thrust
Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
4730-00-891-9343 INTERCHANGEABLE
Elbow,tube to Hose
4820-01-039-3741008-037-041 INTERCHANGEABLE
Valve,check
Kahn and Company, Incorporated
Cross-Reference Index
Part NumberManufacturer
680-3CP Naval Inventory Control Point Mechanicsburg (USA)
680-3 Admiral Valve Llc Dba Cpv Manufacturing (USA)
Related Parts
5305-00-010-2592INTERCHANGEABLE
SETSCREW
102592
2010-00-036-5690INTERCHANGEABLE
LEVER,GEAR
533PC13T013CAND18
5940-00-236-7218INTERCHANGEABLE
TERMINAL,LUG
4810-00-303-1151INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
6803
4810-00-375-9824INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
P155-2103
2510-00-507-3830INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
9M798-1
6240-00-739-0961INTERCHANGEABLE
LAMP,INCANDESCENT
3110-00-799-8966INTERCHANGEABLE
BEARING,BALL,THRUST
39SB16
4730-00-891-9343INTERCHANGEABLE
ELBOW,TUBE TO HOSE
4820-01-039-3741INTERCHANGEABLE
VALVE,CHECK
008-037-041
7510-01-315-2020INTERCHANGEABLE
TAB,SIGNAL
680-3
5930-01-422-1686INTERCHANGEABLE
SWITCH,PUSH
6803

Frequently Asked Questions

What is NSN 4820-01-043-1958?

NSN 4820-01-043-1958 is a Valve,check, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-043-1958?

NSN 4820-01-043-1958 has 2 cross-referenced part numbers: 680-3CP (Naval Inventory Control Point Mechanicsburg), 680-3 (Admiral Valve Llc Dba Cpv Manufacturing).

What NSN replaces 4820-01-043-1958?

There are 12 known substitutes for 4820-01-043-1958: 5305-00-010-2592, 2010-00-036-5690, 5940-00-236-7218 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 680-3CP?

Key specifications for 680-3CP: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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