PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120881Plug,pump

Imo Ab · NSN 4320-01-421-8518 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-421-8518 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-421-8518. Primary manufacturer part number: 120881.
Features
  • Plug,pump — FSC 4320
  • 3 verified cross-references
  • Primary manufacturer: Imo Ab
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Plug,pump, cataloged under National Stock Number 4320-01-421-8518, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Imo Ab. This item has 3 commercial cross-references from 2 manufacturers, 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
NSN4320-01-421-8518
Primary Part Number120881
Item NamePlug,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerImo Ab
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-235-1598 INTERCHANGEABLE
Washer,keyway
5945-00-687-1174 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
120881 Imo Ab (SWE)
120881 Circor Pumps North America Llc (USA)
PUMP ACG SER IT537 Imo Ab (SWE)
Related Parts
5310-00-235-1598INTERCHANGEABLE
WASHER,KEYWAY
5945-00-687-1174INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 4320-01-421-8518?

NSN 4320-01-421-8518 is a Plug,pump, manufactured by Imo Ab, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-421-8518?

NSN 4320-01-421-8518 has 3 cross-referenced part numbers: 120881 (Imo Ab), 120881 (Circor Pumps North America Llc), PUMP ACG SER IT537 (Imo Ab).

What NSN replaces 4320-01-421-8518?

There are 2 known substitutes for 4320-01-421-8518: 5310-00-235-1598, 5945-00-687-1174. Verify interchangeability with system specifications before substitution.

What are the specifications of 120881?

Key specifications for 120881: End Item Identification: NAVY WEAPON SYSTEM CODE TH STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 1 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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