PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56587-MAA-2.5Pump Unit,reciprocating

Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co · NSN 4320-01-450-5064 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-450-5064 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-450-5064. Primary manufacturer part number: 56587-MAA-2.5.
Features
  • Pump Unit,reciprocating — FSC 4320
  • Intake Connection Quantity: 1
  • Reciprocating Stroke Type: FIXED
  • Cylinder Quantity: 1
  • Media for Which Designed: AIR
  • Intake Connection Thread Size and Series/type Designator: 0.250-18 NPT
  • Discharge Connection Type: THREADED INTERNAL
  • Mounting Type: FLANGE
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump Unit,reciprocating, cataloged under National Stock Number 4320-01-450-5064, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co. Government technical data includes 14 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-450-5064
Primary Part Number56587-MAA-2.5
Item NamePump Unit,reciprocating
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerMosier Fluid Power of Ohio Inc Dba Kc Mosier Co
StatusACTIVE
Intake Connection Quantity1
Reciprocating Stroke TypeFIXED
Cylinder Quantity1
Media for Which DesignedAIR
Intake Connection Thread Size and Series/type Designator0.250-18 NPT
Discharge Connection TypeTHREADED INTERNAL
Mounting TypeFLANGE
Discharge Connection Quantity1
Pumping Element TypePISTON
Discharge Pressure20.0 ENERGY EFFICIENT - FEMP - LOW STANDBY POWER - OFFICE EQUIPMENT -INTEGRATED COMPUTERS
Intake Connection TypeTHREADED INTERNAL
Pump Reciprocating DesignSINGLE ACTING
Discharge Connection Thread Size and Series/type Designator0.250-18 NPT
Pump Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5340-01-081-3419COV-3313 INTERCHANGEABLE
Clamp,loop
Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
56587-MAA-2.5 Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co (USA)
56260 Haskel International, Llc Dba Haskel International, Llc (USA)
56587-MAA-2.5 Haskel International, Llc Dba Haskel International, Llc (USA)
Related Parts
5340-01-081-3419INTERCHANGEABLE
CLAMP,LOOP
COV-3313

Frequently Asked Questions

What is NSN 4320-01-450-5064?

NSN 4320-01-450-5064 is a Pump Unit,reciprocating, manufactured by Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-450-5064?

NSN 4320-01-450-5064 has 3 cross-referenced part numbers: 56587-MAA-2.5 (Mosier Fluid Power of Ohio Inc Dba Kc Mosier Co), 56260 (Haskel International, Llc Dba Haskel International, Llc), 56587-MAA-2.5 (Haskel International, Llc Dba Haskel International, Llc).

What NSN replaces 4320-01-450-5064?

There is 1 known substitute for 4320-01-450-5064: 5340-01-081-3419. Verify interchangeability with system specifications before substitution.

What are the specifications of 56587-MAA-2.5?

Key specifications for 56587-MAA-2.5: Intake Connection Quantity: 1; Reciprocating Stroke Type: FIXED; Cylinder Quantity: 1; Media for Which Designed: AIR. 16 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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