PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3700041-051Impeller,pump,centrifugal

Evac North America Inc · NSN 4320-01-345-2704 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-345-2704 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-345-2704. Primary manufacturer part number: 3700041-051.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Rotation Direction for Which Designed: CLOCKWISE
  • Overall Diameter: 4.105 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Design Type: SINGLE WIDTH
  • 4 verified cross-references
  • Primary manufacturer: Evac North America Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Copper Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-345-2704, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Evac North America Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN4320-01-345-2704
Primary Part Number3700041-051
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEvac North America Inc
StatusACTIVE
Rotation Direction for Which DesignedCLOCKWISE
Overall Diameter4.105 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Design TypeSINGLE WIDTH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0315453A INTERCHANGEABLE
Cup,tapered Roller Bearing
Ntn Bearing Corporation of America
5950-00-109-20002509-1 INTERCHANGEABLE
Coil,radio Frequency
General Microwave Corporation Div Kratos Microwave Electronics
5330-00-146-404925091 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5330-00-166-86225198676 INTERCHANGEABLE
Gasket Set
Rolls-Royce Solutions America Inc
1680-00-181-135725091 INTERCHANGEABLE
Arm,control Door,crew
Triumph Controls, Llc Dba Triumph Controls, Llc
5133-00-189-9317 INTERCHANGEABLE
Drill,twist
3120-00-374-9733 INTERCHANGEABLE
Bearing Half,sleeve
5955-01-038-9991581R482H08 INTERCHANGEABLE
Oscillator,noncrystal Controlled
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5330-01-118-413470479 INTERCHANGEABLE
Seal,oil
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
3040-01-247-9547133511 INTERCHANGEABLE
Lever,manual Control
Landoll Company, Llc
Cross-Reference Index
Part NumberManufacturer
3700041-051 PRIMARY Evac North America Inc (USA)
3700041-051 D.i.s., Inc. Dba Digital Imaging Solutions (USA)
25091 Industrial Technologies and Services Llc (USA)
3700041-051 Envirovac Inc Dba Monogram Systems-Rockford Div (USA)
Related Parts
3110-00-100-0315INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
453A
5950-00-109-2000INTERCHANGEABLE
COIL,RADIO FREQUENCY
2509-1
5330-00-146-4049INTERCHANGEABLE
GASKET
25091
5330-00-166-8622INTERCHANGEABLE
GASKET SET
5198676
1680-00-181-1357INTERCHANGEABLE
ARM,CONTROL DOOR,CREW
25091
5133-00-189-9317INTERCHANGEABLE
DRILL,TWIST
3120-00-374-9733INTERCHANGEABLE
BEARING HALF,SLEEVE
5955-01-038-9991INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
581R482H08
5330-01-118-4134INTERCHANGEABLE
SEAL,OIL
70479
3040-01-247-9547INTERCHANGEABLE
LEVER,MANUAL CONTROL
133511
4130-01-296-3907INTERCHANGEABLE
LEAF
5120-01-335-1416INTERCHANGEABLE
PUNCH,DRIVE PIN
25091

Frequently Asked Questions

What is NSN 4320-01-345-2704?

NSN 4320-01-345-2704 is a Impeller,pump,centrifugal, manufactured by Evac North America Inc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-345-2704?

NSN 4320-01-345-2704 has 4 cross-referenced part numbers: 3700041-051 (Evac North America Inc), 3700041-051 (D.i.s., Inc. Dba Digital Imaging Solutions), 25091 (Industrial Technologies and Services Llc), 3700041-051 (Envirovac Inc Dba Monogram Systems-Rockford Div).

What NSN replaces 4320-01-345-2704?

There are 12 known substitutes for 4320-01-345-2704: 3110-00-100-0315, 5950-00-109-2000, 5330-00-146-4049 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3700041-051?

Key specifications for 3700041-051: Rotation Direction for Which Designed: CLOCKWISE; Overall Diameter: 4.105 INCHES NOMINAL IN; Material: COPPER ALLOY; Design Type: SINGLE WIDTH. 5 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com