PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4A803Plunger,unloader

Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions · NSN 4310-00-216-7861 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-216-7861 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-216-7861. Primary manufacturer part number: 4A803.
Features
  • Plunger,unloader — FSC 4310
  • 42 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Plunger,unloader, cataloged under National Stock Number 4310-00-216-7861, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. This item has 42 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePlunger,unloader
FSC / FSG4310 — No Item Name Available (FSG 43)
ManufacturersDresser-Rand Co Ingersoll-Rand Opns a Joint Venture (CAGE 88663); Ingersoll Rand Co (CAGE 30760); Siemens Energy, Inc. Dba Dresser-Rand (CAGE 0AT62); Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (CAGE 830Q4)
Technical Specifications
ParameterValue
NSN4310-00-216-7861
Primary Part Number4A803
Item NamePlunger,unloader
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5110-01-428-554710-099 INTERCHANGEABLE
Knife,craftsman's
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
N565PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
4A803 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N411PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N476PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N409PC229 Ingersoll Rand Co (USA)
N441PC229 Ingersoll Rand Co (USA)
N477PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N567PC229 Ingersoll Rand Co (USA)
N477PC229 Ingersoll Rand Co (USA)
N441PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
4A803 Siemens Energy, Inc. Dba Dresser-Rand (USA)
N440PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
IR10-600T229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N453PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N453PC229 Ingersoll Rand Co (USA)
N514PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
N514PC229 Ingersoll Rand Co (USA)
N411PC229 Ingersoll Rand Co (USA)
N451PC229 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
4A803 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
Related Parts
5110-01-428-5547INTERCHANGEABLE
KNIFE,CRAFTSMAN'S
10-099

Frequently Asked Questions

What is NSN 4310-00-216-7861?

NSN 4310-00-216-7861 is a Plunger,unloader, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-216-7861?

NSN 4310-00-216-7861 has 42 cross-referenced part numbers: N565PC229 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), 4A803 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), N411PC229 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), N476PC229 (Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture), N409PC229 (Ingersoll Rand Co) and 37 more.

What NSN replaces 4310-00-216-7861?

There is 1 known substitute for 4310-00-216-7861: 5110-01-428-5547. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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