PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3.0-781Strainer,sediment

Core Industries Inc. Dba Mueller Steam Specialty · NSN 4730-01-397-1172 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-397-1172 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-397-1172. Primary manufacturer part number: 3.0-781.
Features
  • Strainer,sediment — FSC 4730
  • Mounting Type: INLET CONNECTION AND OUTLET CONNECTION LINE
  • Material: STEEL CORROSION RESISTING SCREENING
  • First Discharge Connection Relationship to Intake Connection: IDENTICAL TO FIRST INTAKE CONNECTION
  • First Intake Flange Face Style: RAISED
  • Style Designator: Y STRAINER W/BOLTED COVER
  • Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE
  • First Intake Flange Shape Style: ROUND W/UNTHREADED BOLT HOLES
Applications
  • Applications requiring Steel Corrosion Resisting Screening construction
General Description

The Strainer,sediment, cataloged under National Stock Number 4730-01-397-1172, 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 Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4730-01-397-1172
Primary Part Number3.0-781
Item NameStrainer,sediment
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCore Industries Inc. Dba Mueller Steam Specialty
StatusACTIVE
Mounting TypeINLET CONNECTION AND OUTLET CONNECTION LINE
MaterialSTEEL CORROSION RESISTING SCREENING
First Discharge Connection Relationship to Intake ConnectionIDENTICAL TO FIRST INTAKE CONNECTION
First Intake Flange Face StyleRAISED
Style DesignatorY STRAINER W/BOLTED COVER
Filtering Media DesignPERFORATED SINGLE FILTERING MEDIA RESPONSE
First Intake Flange Shape StyleROUND W/UNTHREADED BOLT HOLES
Second Intake Connection Relationship to First Intake ConnectionIDENTICAL
First Intake Connection TypeRAISED FACE FLANGE SIDE NEAR TOP
MaterialSTEEL BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-093-5518781 INTERCHANGEABLE
Diaphragm,valve,flat
Sealco Air Controls Inc
6135-00-120-1019 INTERCHANGEABLE
Battery,nonrechargeable
8030-00-180-633959575 INTERCHANGEABLE
Caulking Compound
Loctite Corp
3530-00-223-356978-1 INTERCHANGEABLE
Sewing Machine,industrial
Singer Industrial Sewing Products Co Cutters Exchange Div
5310-00-262-4853 INTERCHANGEABLE
Washer,flat
5985-00-556-9202 INTERCHANGEABLE
Dummy Load,electrical
5930-00-615-7340695906-1 INTERCHANGEABLE
Switch,pressure
Lockheed Martin Corp
5970-00-691-062230781 INTERCHANGEABLE
Insulator,bushing
L3harris Technologies, Inc. Div Space and Airborne Systems
5340-00-724-43271035052-10 INTERCHANGEABLE
Clamp,loop
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
6505-01-010-3066NDC00002-1499-01 INTERCHANGEABLE
Tobramycin Injection
Eli Lilly and Company
Cross-Reference Index
Part NumberManufacturer
3.0-781 PRIMARY Core Industries Inc. Dba Mueller Steam Specialty (USA)
781 Core Industries Inc. Dba Mueller Steam Specialty (USA)
Related Parts
4820-00-093-5518INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
781
6135-00-120-1019INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
8030-00-180-6339INTERCHANGEABLE
CAULKING COMPOUND
59575
3530-00-223-3569INTERCHANGEABLE
SEWING MACHINE,INDUSTRIAL
78-1
5310-00-262-4853INTERCHANGEABLE
WASHER,FLAT
5985-00-556-9202INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
5930-00-615-7340INTERCHANGEABLE
SWITCH,PRESSURE
695906-1
5970-00-691-0622INTERCHANGEABLE
INSULATOR,BUSHING
30781
5340-00-724-4327INTERCHANGEABLE
CLAMP,LOOP
1035052-10
6505-01-010-3066INTERCHANGEABLE
TOBRAMYCIN INJECTION
NDC00002-1499-01
6620-01-025-3395INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
06102-1
6650-01-191-0139INTERCHANGEABLE
SPECTROPHOTOMETER
0186-0880

Frequently Asked Questions

What is NSN 4730-01-397-1172?

NSN 4730-01-397-1172 is a Strainer,sediment, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-397-1172?

NSN 4730-01-397-1172 has 2 cross-referenced part numbers: 3.0-781 (Core Industries Inc. Dba Mueller Steam Specialty), 781 (Core Industries Inc. Dba Mueller Steam Specialty).

What NSN replaces 4730-01-397-1172?

There are 12 known substitutes for 4730-01-397-1172: 4820-00-093-5518, 6135-00-120-1019, 8030-00-180-6339 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3.0-781?

Key specifications for 3.0-781: Mounting Type: INLET CONNECTION AND OUTLET CONNECTION LINE; Material: STEEL CORROSION RESISTING SCREENING; First Discharge Connection Relationship to Intake Connection: IDENTICAL TO FIRST INTAKE CONNECTION; First Intake Flange Face Style: RAISED. 12 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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