PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27103Plunger,oil Pump

Paxton Products Inc · NSN 4140-00-972-8804 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-972-8804 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-972-8804. Primary manufacturer part number: 27103.
Features
  • Plunger,oil Pump — FSC 4140
  • General Characteristics Item Description: CAST IRON,.311 IN. DIA; 2.107 IN. LG IN
  • 1 verified cross-reference
  • Primary manufacturer: Paxton Products Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Plunger,oil Pump, cataloged under National Stock Number 4140-00-972-8804, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Paxton Products Inc. Government technical data includes 1 verified specification, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-00-972-8804
Primary Part Number27103
Item NamePlunger,oil Pump
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerPaxton Products Inc
StatusACTIVE
General Characteristics Item DescriptionCAST IRON,.311 IN. DIA; 2.107 IN. LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6160-00-128-015027103-001 INTERCHANGEABLE
Liner,battery Box-Battery Tray
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
5905-00-279-4359 INTERCHANGEABLE
Resistor,fixed,film
2920-00-504-17213379536 INTERCHANGEABLE
End Bell,electrical Rotating Equ
Hatch & Kirk, Inc.
5935-00-532-0448 INTERCHANGEABLE
Connector,receptacle,electrical
5340-00-910-67362710-00300 INTERCHANGEABLE
Shield,expansion
Star Expansion Co
5330-00-989-7350A1205L740 INTERCHANGEABLE
Seal,plain Encased
Meritor Industrial Products, Llc
5950-01-031-76802500703 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5360-01-033-251327103 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5930-01-147-898127103 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
5935-01-486-764427-103 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
Cross-Reference Index
Part NumberManufacturer
27103 PRIMARY Paxton Products Inc (USA)
Related Parts
6160-00-128-0150INTERCHANGEABLE
LINER,BATTERY BOX-BATTERY TRAY
27103-001
5905-00-279-4359INTERCHANGEABLE
RESISTOR,FIXED,FILM
2920-00-504-1721INTERCHANGEABLE
END BELL,ELECTRICAL ROTATING EQU
3379536
5935-00-532-0448INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5340-00-910-6736INTERCHANGEABLE
SHIELD,EXPANSION
2710-00300
5330-00-989-7350INTERCHANGEABLE
SEAL,PLAIN ENCASED
A1205L740
5950-01-031-7680INTERCHANGEABLE
TRANSFORMER,POWER
2500703
5360-01-033-2513INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
27103
5930-01-147-8981INTERCHANGEABLE
SWITCH,FLOW
27103
5935-01-486-7644INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
27-103
5340-01-651-9795INTERCHANGEABLE
BRACKET,ANGLE
27103

Frequently Asked Questions

What is NSN 4140-00-972-8804?

NSN 4140-00-972-8804 is a Plunger,oil Pump, manufactured by Paxton Products Inc, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-00-972-8804?

NSN 4140-00-972-8804 has 1 cross-referenced part number: 27103 (Paxton Products Inc).

What NSN replaces 4140-00-972-8804?

There are 11 known substitutes for 4140-00-972-8804: 6160-00-128-0150, 5905-00-279-4359, 2920-00-504-1721 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27103?

Key specifications for 27103: General Characteristics Item Description: CAST IRON,.311 IN. DIA; 2.107 IN. LG IN; End Item Identification: CENTRIFUGAL BLOWER,PAXTON PRODUCTS,INC MODEL VR 70 SERIES. 2 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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