PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3485Valve,poppet,engine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2810-00-118-6479 · FSC 2810 · No Item Name Available
Verified by PartsTable
NSN 2810-00-118-6479 — this item is cataloged by the U.S. Government under National Stock Number 2810-00-118-6479. Primary manufacturer part number: 3485.
Features
  • Valve,poppet,engine — FSC 2810
  • First Groove Width: 0.3750 INCHES NOMINAL IN
  • Carbon Relief Groove: NOT INCLUDED
  • First Groove Diameter: 0.3390 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
  • Head Style: CONCAVE
  • Metallic Hardness Rating and Location: 50.0 SHORE SCLEROSCOPE MINIMUM OVERALL
  • Stem Diameter: 0.4340 INCHES MINIMUM AND 0.4350 INCHES MAXIMUM IN
  • Metallic Hardness Rating and Location: 60.0 SHORE SCLEROSCOPE MAXIMUM OVERALL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical power generation
  • Drive system operation
General Description

The Valve,poppet,engine, cataloged under National Stock Number 2810-00-118-6479, is classified within Federal Supply Class 2810 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2810-00-118-6479
Primary Part Number3485
Item NameValve,poppet,engine
FSC / FSG2810 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
First Groove Width0.3750 INCHES NOMINAL IN
Carbon Relief GrooveNOT INCLUDED
First Groove Diameter0.3390 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
Head StyleCONCAVE
Metallic Hardness Rating and Location50.0 SHORE SCLEROSCOPE MINIMUM OVERALL
Stem Diameter0.4340 INCHES MINIMUM AND 0.4350 INCHES MAXIMUM IN
Metallic Hardness Rating and Location60.0 SHORE SCLEROSCOPE MAXIMUM OVERALL
Chamfer Length0.0100 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM IN
Second Groove Diameter0.3390 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN
Second Groove Width0.0480 INCHES NOMINAL IN
Stem Length4.7090 INCHES NOMINAL IN
Neck Radius0.7500 INCHES NOMINAL IN
Seat Angle in Deg45.0
Distance From First Groove to Stem End0.1875 INCHES NOMINAL IN
Chamfer Angle in Deg45.0
Outside Diameter2.2130 INCHES MINIMUM AND 2.2230 INCHES MAXIMUM IN
Stem StyleDOUBLE GROOVED
Head Height0.2190 INCHES NOMINAL IN
Distance From Second Groove to Stem End0.6250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2530-00-113-5455 INTERCHANGEABLE
Cylinder,brake
5915-00-501-4554 INTERCHANGEABLE
Filter,radio Frequency Interfere
2510-00-736-86767368676 INTERCHANGEABLE
Alignment Clip,leaf Spring
U S Army Tank Automotive Command Amsta-Im-Mm
5342-01-052-23483485 INTERCHANGEABLE
Coupling,clamp,grooved
Pentair Filtration Solutions, Llc
4820-01-073-74143485 INTERCHANGEABLE
Valve,safety Relief
Megator Corp
5950-01-079-13033485 INTERCHANGEABLE
Transformer,power
Crown Audio, Inc. Dba Crown International
5950-01-148-9878848067-413 INTERCHANGEABLE
Circuit Card Assy
Raytheon Company Dba Raytheon Co
2040-01-165-3897074268-4 INTERCHANGEABLE
Connector,thru Hull
Sea Cure Technology, Inc
2910-01-263-647933485 INTERCHANGEABLE
Filter,fluid
Wix Corp
5340-01-304-42318152-A-0632-16 INTERCHANGEABLE
Standoff,threaded,spacing
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
Cross-Reference Index
Part NumberManufacturer
3485 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
3485 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
2530-00-113-5455INTERCHANGEABLE
CYLINDER,BRAKE
5915-00-501-4554INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
2510-00-736-8676INTERCHANGEABLE
ALIGNMENT CLIP,LEAF SPRING
7368676
5342-01-052-2348INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
3485
4820-01-073-7414INTERCHANGEABLE
VALVE,SAFETY RELIEF
3485
5950-01-079-1303INTERCHANGEABLE
TRANSFORMER,POWER
3485
5950-01-148-9878INTERCHANGEABLE
CIRCUIT CARD ASSY
848067-413
2040-01-165-3897INTERCHANGEABLE
CONNECTOR,THRU HULL
074268-4
2910-01-263-6479INTERCHANGEABLE
FILTER,FLUID
33485
5340-01-304-4231INTERCHANGEABLE
STANDOFF,THREADED,SPACING
8152-A-0632-16
5120-01-399-9209INTERCHANGEABLE
PLIERS,RETAINING RING
3485

Frequently Asked Questions

What is NSN 2810-00-118-6479?

NSN 2810-00-118-6479 is a Valve,poppet,engine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2810 (No Item Name Available). Status: active.

What are the part numbers for NSN 2810-00-118-6479?

NSN 2810-00-118-6479 has 2 cross-referenced part numbers: 3485 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 3485 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2810-00-118-6479?

There are 11 known substitutes for 2810-00-118-6479: 2530-00-113-5455, 5915-00-501-4554, 2510-00-736-8676 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3485?

Key specifications for 3485: First Groove Width: 0.3750 INCHES NOMINAL IN; Carbon Relief Groove: NOT INCLUDED; First Groove Diameter: 0.3390 INCHES MINIMUM AND 0.3850 INCHES MAXIMUM IN; Head Style: CONCAVE. 19 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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