PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NH6756A22JO-Ring

Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture · NSN 5331-01-170-8447 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-170-8447 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-170-8447. Primary manufacturer part number: NH6756A22J.
Features
  • O-Ring — FSC 5331
  • 5 verified cross-references
  • Primary manufacturer: Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-170-8447, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersDresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (CAGE 82328); Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (CAGE 16497); Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (CAGE 830Q4); Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (CAGE 0BR59); Ashcroft Inc Dba Heise (CAGE 38056)
Technical Specifications
ParameterValue
NSN5331-01-170-8447
Primary Part NumberNH6756A22J
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerDresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3040-00-779-6351 INTERCHANGEABLE
Shaft,straight
6615-00-900-685342281 INTERCHANGEABLE
Gyroscope,displacement
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5930-01-033-791742281 INTERCHANGEABLE
Switch,sensitive
Andrew Llc
Cross-Reference Index
Part NumberManufacturer
NH6756A22J Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
42281 Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
NH6756A22J Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
NH6756A22J Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
42281 Ashcroft Inc Dba Heise (USA)
Related Parts
3040-00-779-6351INTERCHANGEABLE
SHAFT,STRAIGHT
6615-00-900-6853INTERCHANGEABLE
GYROSCOPE,DISPLACEMENT
42281
5930-01-033-7917INTERCHANGEABLE
SWITCH,SENSITIVE
42281

Frequently Asked Questions

What is NSN 5331-01-170-8447?

NSN 5331-01-170-8447 is a O-Ring, manufactured by Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-170-8447?

NSN 5331-01-170-8447 has 5 cross-referenced part numbers: NH6756A22J (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), 42281 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse), NH6756A22J (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), NH6756A22J (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 42281 (Ashcroft Inc Dba Heise).

What NSN replaces 5331-01-170-8447?

There are 3 known substitutes for 5331-01-170-8447: 3040-00-779-6351, 6615-00-900-6853, 5930-01-033-7917. Verify interchangeability with system specifications before substitution.

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