PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-188Motor-Pump Subassembly,hydraulic

Haskel International, Llc Dba Haskel International, Llc · NSN 4320-01-552-0821 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-552-0821 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-552-0821. Primary manufacturer part number: M-188.
Features
  • Motor-Pump Subassembly,hydraulic — FSC 4320
  • General Characteristics Item Description: DISPLACEMENT/CYCLE 0.23 CU. IN
  • Material: STEEL AND ALUMINUM
  • Pressure Rating: ERR-060
  • 1 verified cross-reference
  • Primary manufacturer: Haskel International, Llc Dba Haskel International, Llc
Applications
  • Applications requiring Steel and Aluminum construction
General Description

The Motor-Pump Subassembly,hydraulic, cataloged under National Stock Number 4320-01-552-0821, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Haskel International, Llc Dba Haskel International, Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-552-0821
Primary Part NumberM-188
Item NameMotor-Pump Subassembly,hydraulic
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerHaskel International, Llc Dba Haskel International, Llc
StatusACTIVE
General Characteristics Item DescriptionDISPLACEMENT/CYCLE 0.23 CU. IN
MaterialSTEEL AND ALUMINUM
Pressure RatingERR-060
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1325-00-028-5467 INTERCHANGEABLE
Fuze,bomb
5945-00-051-6681M188 INTERCHANGEABLE
Relay,electromagnetic
Tce Canada Ltd
3110-00-156-5328 INTERCHANGEABLE
Bearing,ball,annular
5331-01-365-0215 INTERCHANGEABLE
O-Ring
7720-01-600-0585M188 INTERCHANGEABLE
Mallets,xylophone
Vic Firth,inc.
Cross-Reference Index
Part NumberManufacturer
M-188 Haskel International, Llc Dba Haskel International, Llc (USA)
Related Parts
1325-00-028-5467INTERCHANGEABLE
FUZE,BOMB
5945-00-051-6681INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
M188
3110-00-156-5328INTERCHANGEABLE
BEARING,BALL,ANNULAR
5331-01-365-0215INTERCHANGEABLE
O-RING
7720-01-600-0585INTERCHANGEABLE
MALLETS,XYLOPHONE
M188

Frequently Asked Questions

What is NSN 4320-01-552-0821?

NSN 4320-01-552-0821 is a Motor-Pump Subassembly,hydraulic, manufactured by Haskel International, Llc Dba Haskel International, Llc, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-552-0821?

NSN 4320-01-552-0821 has 1 cross-referenced part number: M-188 (Haskel International, Llc Dba Haskel International, Llc).

What NSN replaces 4320-01-552-0821?

There are 5 known substitutes for 4320-01-552-0821: 1325-00-028-5467, 5945-00-051-6681, 3110-00-156-5328 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M-188?

Key specifications for M-188: General Characteristics Item Description: DISPLACEMENT/CYCLE 0.23 CU. IN; End Item Identification: MODEL M PUNP; Special Features: AIR DRAIVE PRESSURE BETWEEN 25 AND 125 PSI; Material: STEEL AND ALUMINUM. 5 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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