PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M-4/00-61CPiston,pump

Psg California, Llc Div Dover Corporation · NSN 4320-01-238-7071 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-238-7071 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-238-7071. Primary manufacturer part number: M-4/00-61C.
Features
  • Piston,pump — FSC 4320
  • Integral Connecting Rod: NOT INCLUDED
  • Pin: NOT INCLUDED
  • Retaining Ring Groove: NOT INCLUDED
  • Ring: NOT INCLUDED
  • 2 verified cross-references
  • Primary manufacturer: Psg California, Llc Div Dover Corporation
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Piston,pump, cataloged under National Stock Number 4320-01-238-7071, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Psg California, Llc Div Dover Corporation. Government technical data includes 4 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-238-7071
Primary Part NumberM-4/00-61C
Item NamePiston,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerPsg California, Llc Div Dover Corporation
StatusACTIVE
Integral Connecting RodNOT INCLUDED
PinNOT INCLUDED
Retaining Ring GrooveNOT INCLUDED
RingNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5940-00-480-578572830 INTERCHANGEABLE
Terminal,lug
Napa Automotive Parts Co
5306-01-322-603861C INTERCHANGEABLE
Bolt,u
Hindley Manufacturing Company Inc
Cross-Reference Index
Part NumberManufacturer
M-4/00-61C Psg California, Llc Div Dover Corporation (USA)
61C Psg California, Llc Div Dover Corporation (USA)
Related Parts
5940-00-480-5785INTERCHANGEABLE
TERMINAL,LUG
72830
5306-01-322-6038INTERCHANGEABLE
BOLT,U
61C

Frequently Asked Questions

What is NSN 4320-01-238-7071?

NSN 4320-01-238-7071 is a Piston,pump, manufactured by Psg California, Llc Div Dover Corporation, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-238-7071?

NSN 4320-01-238-7071 has 2 cross-referenced part numbers: M-4/00-61C (Psg California, Llc Div Dover Corporation), 61C (Psg California, Llc Div Dover Corporation).

What NSN replaces 4320-01-238-7071?

There are 2 known substitutes for 4320-01-238-7071: 5940-00-480-5785, 5306-01-322-6038. Verify interchangeability with system specifications before substitution.

What are the specifications of M-4/00-61C?

Key specifications for M-4/00-61C: End Item Identification: WILDEN PUMP MODEL M-4 SERIES; Integral Connecting Rod: NOT INCLUDED; Special Features: INNER PISTON; Pin: NOT INCLUDED. 6 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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