PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

026-056Pump,fuel Oil

Cooper Machinery Services Llc · NSN 2910-00-856-1889 · FSC 2910 · No Item Name Available
Verified by PartsTable
NSN 2910-00-856-1889 — this item is cataloged by the U.S. Government under National Stock Number 2910-00-856-1889. Primary manufacturer part number: 026-056.
Features
  • Pump,fuel Oil — FSC 2910
  • General Characteristics Item Description: STEEL,GRAY PAINTED FINISHE,4.500 IN. O/A LG.,3.750 IN. O/A W.,3.062 IN.,1.875 IN. SHAFT LG.,INLET/OUTLET,INTERNAL PIPE CONNECTIONS,0.500 IN. PIPE SIZE,0.500-14 THD. SIZE,NPT,RH.,FLANGE MOUNTED,2 THREADED MOUNTING HOLES,0.500-13 THD. SIZE,UNC,RH.,3.625 IN. CENTER TO CENTER IN
  • 4 verified cross-references
  • Primary manufacturer: Cooper Machinery Services Llc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,fuel Oil, cataloged under National Stock Number 2910-00-856-1889, is classified within Federal Supply Class 2910 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Cooper Machinery Services Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN2910-00-856-1889
Primary Part Number026-056
Item NamePump,fuel Oil
FSC / FSG2910 / 29 — No Item Name Available
ManufacturerCooper Machinery Services Llc
StatusCANCELLED
General Characteristics Item DescriptionSTEEL,GRAY PAINTED FINISHE,4.500 IN. O/A LG.,3.750 IN. O/A W.,3.062 IN.,1.875 IN. SHAFT LG.,INLET/OUTLET,INTERNAL PIPE CONNECTIONS,0.500 IN. PIPE SIZE,0.500-14 THD. SIZE,NPT,RH.,FLANGE MOUNTED,2 THREADED MOUNTING HOLES,0.500-13 THD. SIZE,UNC,RH.,3.625 IN. CENTER TO CENTER IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4320-00-911-923612R1054 INTERCHANGEABLE
Pump,rotary
Steego Corp
5360-01-292-3993012558 INTERCHANGEABLE
Spring,helical,compression
Bosch Rexroth Corporation Div Industrial Hydraulics
Cross-Reference Index
Part NumberManufacturer
012558 Cooper Cameron Corp Ajax-Superior Div (USA)
026-056 Cooper Cameron Corp Ajax-Superior Div (USA)
026-056 PRIMARY Cooper Machinery Services Llc (USA)
A026-056 Cooper Cameron Corp Ajax-Superior Div (USA)
Related Parts
4320-00-911-9236INTERCHANGEABLE
PUMP,ROTARY
12R1054
5360-01-292-3993INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
012558

Frequently Asked Questions

What is NSN 2910-00-856-1889?

NSN 2910-00-856-1889 is a Pump,fuel Oil, manufactured by Cooper Machinery Services Llc, classified under FSC 2910 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2910-00-856-1889?

NSN 2910-00-856-1889 has 4 cross-referenced part numbers: 012558 (Cooper Cameron Corp Ajax-Superior Div), 026-056 (Cooper Cameron Corp Ajax-Superior Div), 026-056 (Cooper Machinery Services Llc), A026-056 (Cooper Cameron Corp Ajax-Superior Div).

What NSN replaces 2910-00-856-1889?

There are 2 known substitutes for 2910-00-856-1889: 4320-00-911-9236, 5360-01-292-3993. Verify interchangeability with system specifications before substitution.

What are the specifications of 026-056?

Key specifications for 026-056: General Characteristics Item Description: STEEL,GRAY PAINTED FINISHE,4.500 IN. O/A LG.,3.750 IN. O/A W.,3.062 IN.,1.875 IN. SHAFT LG.,INLET/OUTLET,INTERNAL PIPE CONNECTIONS,0.500 IN. PIPE SIZE,0.500-14 THD. SIZE,NPT,RH.,FLANGE MOUNTED,2 THREADED MOUNTING HOLES,0.500-13 THD. SIZE,UNC,RH.,3.625 IN. CENTER TO CENTER IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2910-00-856-1889 still in active supply?

NSN 2910-00-856-1889 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com