PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R49388-904GO-Ring

Siemens Energy, Inc. Dba Dresser-Rand · NSN 5331-01-554-6218 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-554-6218 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-554-6218. Primary manufacturer part number: R49388-904G.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Siemens Energy, Inc. Dba Dresser-Rand
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-554-6218, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Siemens Energy, Inc. Dba Dresser-Rand. This item has 2 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: Active.

Technical Specifications
ParameterValue
NSN5331-01-554-6218
Primary Part NumberR49388-904G
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSiemens Energy, Inc. Dba Dresser-Rand
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-752-8316 INTERCHANGEABLE
Retainer,packing
5331-01-265-8813R49388-904G INTERCHANGEABLE
O-Ring
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Cross-Reference Index
Part NumberManufacturer
R49388-904G Siemens Energy, Inc. Dba Dresser-Rand (USA)
R49388-904G Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
Related Parts
5330-00-752-8316INTERCHANGEABLE
RETAINER,PACKING
5331-01-265-8813INTERCHANGEABLE
O-RING
R49388-904G

Frequently Asked Questions

What is NSN 5331-01-554-6218?

NSN 5331-01-554-6218 is a O-Ring, manufactured by Siemens Energy, Inc. Dba Dresser-Rand, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-554-6218?

NSN 5331-01-554-6218 has 2 cross-referenced part numbers: R49388-904G (Siemens Energy, Inc. Dba Dresser-Rand), R49388-904G (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).

What NSN replaces 5331-01-554-6218?

There are 2 known substitutes for 5331-01-554-6218: 5330-00-752-8316, 5331-01-265-8813. Verify interchangeability with system specifications before substitution.

What are the specifications of R49388-904G?

Key specifications for R49388-904G: End Item Identification: FIFTH-STAGE COOLER/SEPARATOR. 1 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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