PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26A 3-8 10T125PSIValve,regulating,fluid Pressure

Watts Regulator Company · NSN 4820-00-640-6213 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-640-6213 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-640-6213. Primary manufacturer part number: 26A 3-8 10T125PSI.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Temp Rating: 120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF
  • Thread Size and Series/type Designator: 3/8-18 NPT FIRST END3/8-18 NPT FIRST END
  • Valve Loading Method: SPRINGSPRING
  • Material: COPPER ALLOY STEMCOPPER ALLOY STEM
  • Body Style: STRAIGHT THRUSTRAIGHT THRU
  • First End Connection Type: THREADED INTERNAL PIPETHREADED INTERNAL PIPE
  • Maximum Inlet Pressure Rating: ERR-060
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Stemcopper Alloy Stem construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-640-6213, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-640-6213
Primary Part Number26A 3-8 10T125PSI
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
Temp Rating120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF
Thread Size and Series/type Designator3/8-18 NPT FIRST END3/8-18 NPT FIRST END
Valve Loading MethodSPRINGSPRING
MaterialCOPPER ALLOY STEMCOPPER ALLOY STEM
Body StyleSTRAIGHT THRUSTRAIGHT THRU
First End Connection TypeTHREADED INTERNAL PIPETHREADED INTERNAL PIPE
Maximum Inlet Pressure RatingERR-060
Second End Relationship with First EndIDENTICALIDENTICAL
Regulation TypeAUTOMATIC SINGLE STAGEAUTOMATIC SINGLE STAGE
Flow Control DeviceDISKDISK
First End Style DesignatorPLAINPLAIN
Outlet Pressure Range10.0 TO 125.0 CAMERA MOUNT
FilterNOT INCLUDEDNOT INCLUDED
End Connection Quantity22
MaterialBRASS SEATBRASS SEAT
First End Thread DirectionRIGHT-HANDRIGHT-HAND
Media for Which DesignedWATERWATER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2010-00-213-05112638 INTERCHANGEABLE
Drum and Hub,brake
Eaton Corporation Dba Airflex Div Div Airflex
5315-00-275-476426 INTERCHANGEABLE
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Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5120-00-277-1580J2638 INTERCHANGEABLE
Wrench,box
The Stanley Works Dba Stanley Proto
5975-00-280-3660 INTERCHANGEABLE
Ferrule,electrical Conduit
2990-00-293-66082638-N INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5330-00-312-24802638 INTERCHANGEABLE
Ring,pack
Standard Steel Llc
5340-00-481-44772638 INTERCHANGEABLE
Strike,catch
Adams Rite Aerospace, Inc
5340-01-078-15042638 INTERCHANGEABLE
Cap,protective,dust and Moisture
Crown Audio, Inc. Dba Crown International
6750-01-353-8673BZTVY INTERCHANGEABLE
Paper,photographic
Beseler, Charles Co Inc
3110-01-479-8342N02638 INTERCHANGEABLE
Bearing,roller,cylindrical
Bauer Compressors, Inc.
Cross-Reference Index
Part NumberManufacturer
N26 3-8 Watts Regulator Company (USA)
26A 3-8 10T125PSI PRIMARY Watts Regulator Company (USA)
26 3-8 Watts Regulator Company (USA)
Related Parts
2010-00-213-0511INTERCHANGEABLE
DRUM AND HUB,BRAKE
2638
5315-00-275-4764INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
26
5120-00-277-1580INTERCHANGEABLE
WRENCH,BOX
J2638
5975-00-280-3660INTERCHANGEABLE
FERRULE,ELECTRICAL CONDUIT
2990-00-293-6608INTERCHANGEABLE
MUFFLER,EXHAUST
2638-N
5330-00-312-2480INTERCHANGEABLE
RING,PACK
2638
5340-00-481-4477INTERCHANGEABLE
STRIKE,CATCH
2638
5340-01-078-1504INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
2638
6750-01-353-8673INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
BZTVY
3110-01-479-8342INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
N02638

Frequently Asked Questions

What is NSN 4820-00-640-6213?

NSN 4820-00-640-6213 is a Valve,regulating,fluid Pressure, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-640-6213?

NSN 4820-00-640-6213 has 3 cross-referenced part numbers: N26 3-8 (Watts Regulator Company), 26A 3-8 10T125PSI (Watts Regulator Company), 26 3-8 (Watts Regulator Company).

What NSN replaces 4820-00-640-6213?

There are 10 known substitutes for 4820-00-640-6213: 2010-00-213-0511, 5315-00-275-4764, 5120-00-277-1580 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26A 3-8 10T125PSI?

Key specifications for 26A 3-8 10T125PSI: Temp Rating: 120.0 FAHRENHEIT NOMINAL120.0 FAHRENHEIT NOMINAL DEGF; Thread Size and Series/type Designator: 3/8-18 NPT FIRST END3/8-18 NPT FIRST END; Valve Loading Method: SPRINGSPRING; Material: COPPER ALLOY STEMCOPPER ALLOY STEM. 18 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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