PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

V20-1S12S-1A11LPump,rotary

Eaton Aerospace, Llc Dba Jackson South · NSN 4320-01-123-3001 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-123-3001 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-123-3001. Primary manufacturer part number: V20-1S12S-1A11L.
Features
  • Pump,rotary — FSC 4320
  • Mounting Type: FLANGE
  • Operating Speed at Rated Capacity: 1200.0 REVOLUTIONS PER MINUTE
  • Discharge Connection Thread Size and Series/type Designator: 1.062-12 UN
  • Pump Rotation Direction: COUNTERCLOCKWISE
  • Unpackaged Unit Length: 8.180 INCHES NOMINAL IN
  • Intake Connection Thread Size and Series/type Designator: 1.625-12 UN
  • Unpackaged Unit Width: 5.100 INCHES NOMINAL IN
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-01-123-3001, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-123-3001
Primary Part NumberV20-1S12S-1A11L
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Mounting TypeFLANGE
Operating Speed at Rated Capacity1200.0 REVOLUTIONS PER MINUTE
Discharge Connection Thread Size and Series/type Designator1.062-12 UN
Pump Rotation DirectionCOUNTERCLOCKWISE
Unpackaged Unit Length8.180 INCHES NOMINAL IN
Intake Connection Thread Size and Series/type Designator1.625-12 UN
Unpackaged Unit Width5.100 INCHES NOMINAL IN
Intake Connection Quantity1
Drive Shaft End Diameter0.750 INCHES NOMINAL IN
Discharge Pressure00.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES
Media for Which DesignedOIL
Drive Shaft TypeKEY TYPE, EXTERNAL
Discharge Connection Quantity1
Drive Shaft Length2.504 INCHES NOMINAL IN
Rotary Pump DesignVANE
Pumping Element Operating PositionHORIZONTAL
Unpackaged Unit Height4.800 INCHES NOMINAL IN
Drive Connection TypeCLOSE COUPLED
Maximum Discharge Flow Rate12.0 GALLONS PER MINUTE
Operation MethodPOWERED
Intake Connection TypeTHREADED INTERNAL
Discharge Connection TypeTHREADED INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4320-01-035-1360331789 INTERCHANGEABLE
Ring,wearing
Eaton Aerospace, Llc Dba Jackson South
6625-01-482-831135835 INTERCHANGEABLE
Wattmeter
Hughes Corp Div Weschler Electric
4710-01-574-54593211176 INTERCHANGEABLE
Tube Assembly,metal
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
V20-1S12S-1A11L PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
32-111-76 Schreck Industries Inc (USA)
358355 Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
4320-01-035-1360INTERCHANGEABLE
RING,WEARING
331789
6625-01-482-8311INTERCHANGEABLE
WATTMETER
35835
4710-01-574-5459INTERCHANGEABLE
TUBE ASSEMBLY,METAL
3211176

Frequently Asked Questions

What is NSN 4320-01-123-3001?

NSN 4320-01-123-3001 is a Pump,rotary, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-123-3001?

NSN 4320-01-123-3001 has 3 cross-referenced part numbers: V20-1S12S-1A11L (Eaton Aerospace, Llc Dba Jackson South), 32-111-76 (Schreck Industries Inc), 358355 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 4320-01-123-3001?

There are 3 known substitutes for 4320-01-123-3001: 4320-01-035-1360, 6625-01-482-8311, 4710-01-574-5459. Verify interchangeability with system specifications before substitution.

What are the specifications of V20-1S12S-1A11L?

Key specifications for V20-1S12S-1A11L: Mounting Type: FLANGE; Special Features: DISCHARGE PORT OPPOSITE INLET PORT; Operating Speed at Rated Capacity: 1200.0 REVOLUTIONS PER MINUTE; Discharge Connection Thread Size and Series/type Designator: 1.062-12 UN. 23 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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