PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-6397247-3131Valve,check

Naval Sea Systems Command · NSN 4820-01-212-6793 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-212-6793 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-212-6793. Primary manufacturer part number: 803-6397247-3131.
Features
  • Valve,check — FSC 4820
  • Material: PLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE
  • Nominal Thread Size: 1.750 INCHES ALL ENDS IN
  • Thread Quantity Per Inch: 12 ALL ENDS
  • Material: NICKEL ALLOY BODY
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Polyamide Nylon Flow Control Device construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-212-6793, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN4820-01-212-6793
Primary Part Number803-6397247-3131
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialPLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE
Nominal Thread Size1.750 INCHES ALL ENDS IN
Thread Quantity Per Inch12 ALL ENDS
MaterialNICKEL ALLOY BODY
Thread DirectionRIGHT-HAND ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Operating Pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Maximum Operating Temp230.0 FAHRENHEIT SINGLE RESPONSE DEGF
Mounting PositionHORIZONTAL OR VERTICAL
Thread Class3A ALL ENDS A
MaterialNICKEL ALLOY SEAT
Valve Operation MethodAUTOMATIC
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Flow Control DeviceDISK
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorNPT ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-01-121-9782803-6397247-4111 INTERCHANGEABLE
Valve,globe
Naval Sea Systems Command
4820-01-172-9148365-7-OX PL4496 INTERCHANGEABLE
Cartridge Assembly
Admiral Valve Llc Dba Cpv Manufacturing
4820-01-184-9371803-6397247-2111 INTERCHANGEABLE
Valve,globe
Naval Ship Systems Command
4820-01-240-6798803-6397247-5111 INTERCHANGEABLE
Valve,globe
Naval Sea Systems Command
4820-01-270-5758803-6397247-3111 INTERCHANGEABLE
Valve,globe
Naval Sea Systems Command
4730-01-386-1742803-6397247-3X2X-42 INTERCHANGEABLE
Packing Nut
Naval Sea Systems Command
4820-01-452-0083M1309-1 INTERCHANGEABLE
Valve,globe
Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc
4820-01-484-7866803-6397247-2X3X-24 INTERCHANGEABLE
Cartridge,check Valve
Naval Sea Systems Command
5330-01-582-1700803-6397247-2XXX-41 INTERCHANGEABLE
Retainer,packing
Naval Sea Systems Command
4820-01-604-4462803-6397247-24X1-56 INTERCHANGEABLE
Cartridge,stop-Check Valve
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
6GC80-3PL1014 Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging (USA)
803-6397247-3131 PRIMARY Naval Sea Systems Command (USA)
6GC80-3 Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging (USA)
803-6397247 Naval Sea Systems Command (USA)
Related Parts
4820-01-121-9782INTERCHANGEABLE
VALVE,GLOBE
803-6397247-4111
4820-01-172-9148INTERCHANGEABLE
CARTRIDGE ASSEMBLY
365-7-OX PL4496
4820-01-184-9371INTERCHANGEABLE
VALVE,GLOBE
803-6397247-2111
4820-01-240-6798INTERCHANGEABLE
VALVE,GLOBE
803-6397247-5111
4820-01-270-5758INTERCHANGEABLE
VALVE,GLOBE
803-6397247-3111
4730-01-386-1742INTERCHANGEABLE
PACKING NUT
803-6397247-3X2X-42
4820-01-452-0083INTERCHANGEABLE
VALVE,GLOBE
M1309-1
4820-01-484-7866INTERCHANGEABLE
CARTRIDGE,CHECK VALVE
803-6397247-2X3X-24
5330-01-582-1700INTERCHANGEABLE
RETAINER,PACKING
803-6397247-2XXX-41
4820-01-604-4462INTERCHANGEABLE
CARTRIDGE,STOP-CHECK VALVE
803-6397247-24X1-56
4820-01-604-4975INTERCHANGEABLE
STEM,SUPPORT,VALVE
803-6397247-241X-46
5330-01-604-5728INTERCHANGEABLE
RETAINER,PACKING
803-6397247-2XXX-011

Frequently Asked Questions

What is NSN 4820-01-212-6793?

NSN 4820-01-212-6793 is a Valve,check, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-212-6793?

NSN 4820-01-212-6793 has 4 cross-referenced part numbers: 6GC80-3PL1014 (Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging), 803-6397247-3131 (Naval Sea Systems Command), 6GC80-3 (Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging), 803-6397247 (Naval Sea Systems Command).

What NSN replaces 4820-01-212-6793?

There are 12 known substitutes for 4820-01-212-6793: 4820-01-121-9782, 4820-01-172-9148, 4820-01-184-9371 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-6397247-3131?

Key specifications for 803-6397247-3131: Material: PLASTIC POLYAMIDE NYLON FLOW CONTROL DEVICE; Nominal Thread Size: 1.750 INCHES ALL ENDS IN; Thread Quantity Per Inch: 12 ALL ENDS; Material: NICKEL ALLOY BODY. 17 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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