PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7771-3/8 INStrainer,sediment

Watts Regulator Company · NSN 4730-01-364-8791 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-364-8791 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-364-8791. Primary manufacturer part number: 7771-3/8 IN.
Features
  • Strainer,sediment — FSC 4730
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • First Intake Thread Series Designator: NPT
  • Media for Which Designed: WATER
  • Style Designator: Y STRAINER W/THREADED COVER
  • Distance From Bottom of Body to Center of Inlet: 1.656 INCHES NOMINAL IN
  • First Intake Thread Direction: RIGHT-HAND
  • First Discharge Connection Relationship to Intake Connection: IDENTICAL TO FIRST INTAKE CONNECTION
Applications
  • Applications requiring Steel Corrosion Resisting Filtering Medium construction
General Description

The Strainer,sediment, cataloged under National Stock Number 4730-01-364-8791, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings 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 7 commercial cross-references from 3 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
NSN4730-01-364-8791
Primary Part Number7771-3/8 IN
Item NameStrainer,sediment
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
First Intake Thread Series DesignatorNPT
Media for Which DesignedWATER
Style DesignatorY STRAINER W/THREADED COVER
Distance From Bottom of Body to Center of Inlet1.656 INCHES NOMINAL IN
First Intake Thread DirectionRIGHT-HAND
First Discharge Connection Relationship to Intake ConnectionIDENTICAL TO FIRST INTAKE CONNECTION
MaterialSTEEL CORROSION RESISTING FILTERING MEDIUM
First Intake Connection TypeTHREADED INTERNAL PIPE LINE
Filtering Media DesignMESH SINGLE FILTERING MEDIA RESPONSE
Mounting TypeINLET CONNECTION AND OUTLET CONNECTION LINE
Wire Diameter0.014 INCHES NOMINAL IN
First Intake Nominal Thread Size0.375 INCHES IN
Temp Rating210.0 FAHRENHEIT NOMINAL DEGF
MaterialCOPPER ALLOY BODY
Mesh Size24.0
Body Length3.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-230-1980391441 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Chrysler Realty Company Llc Dba Daimler Chrysler
5210-00-244-7771106163 INTERCHANGEABLE
Gage,gap Setting
Telemechanics Inc
5940-00-258-55257771 INTERCHANGEABLE
Post,binding,electrical
Eby Group, Llc, the Dba Eby Company Div Eby Company
1660-00-348-2162 INTERCHANGEABLE
Adapter,compressed Gas Cylinder
4730-00-640-6450125HBL-6-2AP INTERCHANGEABLE
Adapter,straight,pipe to Hose
Parker-Hannifin Corp Div Fluid System Connector Division
2590-00-739-4460006159V INTERCHANGEABLE
Switch,beam Selecting,headlight
Kovatch Corp.
6750-01-034-0446 INTERCHANGEABLE
Paper,photographic
5930-01-128-08597771 INTERCHANGEABLE
Switch
Electro Scientific Industries Inc
4320-01-169-2392 INTERCHANGEABLE
Shaft,transmission,pump
6810-01-169-656821062-69 INTERCHANGEABLE
Citric Acid Powder
Hach Company Dba Hach Co
Cross-Reference Index
Part NumberManufacturer
732-7769 PIECE 19 Aqua-Chem, Inc. (USA)
7771 Watts Regulator Company (USA)
923-07935-000 Aqua-Chem, Inc. (USA)
923-07935-000 Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA)
923-7935 Aqua-Chem, Inc. (USA)
732-7935 PIECE 19 Aqua-Chem, Inc. (USA)
7771-3/8 IN PRIMARY Watts Regulator Company (USA)
Related Parts
4730-00-230-1980INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
391441
5210-00-244-7771INTERCHANGEABLE
GAGE,GAP SETTING
106163
5940-00-258-5525INTERCHANGEABLE
POST,BINDING,ELECTRICAL
7771
1660-00-348-2162INTERCHANGEABLE
ADAPTER,COMPRESSED GAS CYLINDER
4730-00-640-6450INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
125HBL-6-2AP
2590-00-739-4460INTERCHANGEABLE
SWITCH,BEAM SELECTING,HEADLIGHT
006159V
6750-01-034-0446INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
5930-01-128-0859INTERCHANGEABLE
SWITCH
7771
4320-01-169-2392INTERCHANGEABLE
SHAFT,TRANSMISSION,PUMP
6810-01-169-6568INTERCHANGEABLE
CITRIC ACID POWDER
21062-69
6515-01-339-1851INTERCHANGEABLE
SUTURE,ABSORBABLE,SURGICAL
7771
6530-01-406-3393INTERCHANGEABLE
WALKER,INVALID

Frequently Asked Questions

What is NSN 4730-01-364-8791?

NSN 4730-01-364-8791 is a Strainer,sediment, manufactured by Watts Regulator Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-364-8791?

NSN 4730-01-364-8791 has 7 cross-referenced part numbers: 732-7769 PIECE 19 (Aqua-Chem, Inc.), 7771 (Watts Regulator Company), 923-07935-000 (Aqua-Chem, Inc.), 923-07935-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 923-7935 (Aqua-Chem, Inc.) and 2 more.

What NSN replaces 4730-01-364-8791?

There are 12 known substitutes for 4730-01-364-8791: 4730-00-230-1980, 5210-00-244-7771, 5940-00-258-5525 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7771-3/8 IN?

Key specifications for 7771-3/8 IN: Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; First Intake Thread Series Designator: NPT; Media for Which Designed: WATER; Style Designator: Y STRAINER W/THREADED COVER. 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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