PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15880Diaphragm,unloader

Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division · NSN 4310-00-374-9504 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-374-9504 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-374-9504. Primary manufacturer part number: 15880.
Features
  • Diaphragm,unloader — FSC 4310
  • 2 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Diaphragm,unloader, cataloged under National Stock Number 4310-00-374-9504, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm,unloader
FSC / FSG4310 — No Item Name Available (FSG 43)
ManufacturersParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (CAGE 9F512); Compair Kellogg Div of Robertshaw Controls Co (CAGE 53239)
Technical Specifications
ParameterValue
NSN4310-00-374-9504
Primary Part Number15880
Item NameDiaphragm,unloader
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5325-00-016-027415880 INTERCHANGEABLE
Ring,retaining
Collins Engine Nozzles, Inc
1650-00-448-03801588-0 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Parker Hannifin Corporation Div Hydraulic Systems Division
5826-00-611-0865MT1175ARN30A INTERCHANGEABLE
Mount
Joint Electronics Type Designation System
5310-01-353-0329158.80 INTERCHANGEABLE
Nut,plain,hexagon
Culligan Intl Co Sub of Beatrice Companies Inc
5133-01-398-9692 INTERCHANGEABLE
Drill,twist
5930-01-485-241515880 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
Cross-Reference Index
Part NumberManufacturer
15880 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA)
15880 Compair Kellogg Div of Robertshaw Controls Co (USA)
Related Parts
5325-00-016-0274INTERCHANGEABLE
RING,RETAINING
15880
1650-00-448-0380INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
1588-0
5826-00-611-0865INTERCHANGEABLE
MOUNT
MT1175ARN30A
5310-01-353-0329INTERCHANGEABLE
NUT,PLAIN,HEXAGON
158.80
5133-01-398-9692INTERCHANGEABLE
DRILL,TWIST
5930-01-485-2415INTERCHANGEABLE
SWITCH,PRESSURE
15880

Frequently Asked Questions

What is NSN 4310-00-374-9504?

NSN 4310-00-374-9504 is a Diaphragm,unloader, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-374-9504?

NSN 4310-00-374-9504 has 2 cross-referenced part numbers: 15880 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division), 15880 (Compair Kellogg Div of Robertshaw Controls Co).

What NSN replaces 4310-00-374-9504?

There are 6 known substitutes for 4310-00-374-9504: 5325-00-016-0274, 1650-00-448-0380, 5826-00-611-0865 and 3 more. Verify interchangeability with system specifications before substitution.

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