PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27PD0572405A073Ring,piston

Greene Tweed & Co Inc · NSN 3040-01-648-8555 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-648-8555 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-648-8555. Primary manufacturer part number: 27PD0572405A073.
Features
  • Ring,piston — FSC 3040
  • 2 verified cross-references
  • Primary manufacturer: Greene Tweed & Co Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,piston, cataloged under National Stock Number 3040-01-648-8555, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Greene Tweed & Co Inc. 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 NameRing,piston
FSC / FSG3040 — No Item Name Available (FSG 30)
ManufacturersGreene Tweed & Co Inc (CAGE 5F573); Parker Hannifin Corporation Div Hydraulic Systems Division (CAGE 93835)
Technical Specifications
ParameterValue
NSN3040-01-648-8555
Primary Part Number27PD0572405A073
Item NameRing,piston
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerGreene Tweed & Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6240-00-019-3102 INTERCHANGEABLE
Lamp,incandescent
4920-00-279-53682-3516 INTERCHANGEABLE
Drawbar,telescopic,test Stand
Pdi Ground Support Systems, Inc.
5360-00-292-365527019 INTERCHANGEABLE
Spring,helical,compression
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4920-00-477-51752-7019 INTERCHANGEABLE
Drawbar,engine Test Stand
Celtech Corporation Div Use CAGE 65552 for All Orders
5905-00-946-112327019 INTERCHANGEABLE
Resistor Assembly
Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
5985-01-184-030327019 INTERCHANGEABLE
Coupler,directional
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
27PD0572405A073 PRIMARY Greene Tweed & Co Inc (USA)
27019 Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
6240-00-019-3102INTERCHANGEABLE
LAMP,INCANDESCENT
4920-00-279-5368INTERCHANGEABLE
DRAWBAR,TELESCOPIC,TEST STAND
2-3516
5360-00-292-3655INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
27019
4920-00-477-5175INTERCHANGEABLE
DRAWBAR,ENGINE TEST STAND
2-7019
5905-00-946-1123INTERCHANGEABLE
RESISTOR ASSEMBLY
27019
5985-01-184-0303INTERCHANGEABLE
COUPLER,DIRECTIONAL
27019

Frequently Asked Questions

What is NSN 3040-01-648-8555?

NSN 3040-01-648-8555 is a Ring,piston, manufactured by Greene Tweed & Co Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-648-8555?

NSN 3040-01-648-8555 has 2 cross-referenced part numbers: 27PD0572405A073 (Greene Tweed & Co Inc), 27019 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 3040-01-648-8555?

There are 6 known substitutes for 3040-01-648-8555: 6240-00-019-3102, 4920-00-279-5368, 5360-00-292-3655 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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