PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

V-1656Valve,poppet,engine

Trw Inc Trw Intl Trade Government Sales Dept · NSN 2805-00-732-5185 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-732-5185 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-732-5185. Primary manufacturer part number: V-1656.
Features
  • Valve,poppet,engine — FSC 2805
  • Stem Style: DOUBLE GROOVED
  • Neck Radius: 0.3750 INCHES NOMINAL IN
  • Head Height: 0.1250 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Second Groove Width: 0.0625 INCHES NOMINAL IN
  • Distance From Second Groove to Stem End: 0.3125 INCHES NOMINAL IN
  • First Groove Diameter: 0.3150 INCHES NOMINAL IN
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 2805-00-732-5185, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-732-5185
Primary Part NumberV-1656
Item NameValve,poppet,engine
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerTrw Inc Trw Intl Trade Government Sales Dept
StatusCANCELLED
Stem StyleDOUBLE GROOVED
Neck Radius0.3750 INCHES NOMINAL IN
Head Height0.1250 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Second Groove Width0.0625 INCHES NOMINAL IN
Distance From Second Groove to Stem End0.3125 INCHES NOMINAL IN
First Groove Diameter0.3150 INCHES NOMINAL IN
Second Groove Diameter0.3150 INCHES NOMINAL IN
Seat Angle in Deg45.0
Distance From First Groove to Stem End0.1875 INCHES NOMINAL IN
Chamfer Length0.0312 INCHES NOMINAL IN
Head StyleFLAT
Outside Diameter1.8437 INCHES NOMINAL IN
Chamfer Angle in Deg30.0
Stem Length4.5937 INCHES NOMINAL IN
First Groove Width0.1562 INCHES NOMINAL IN
Carbon Relief GrooveNOT INCLUDED
Stem Diameter0.3725 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-071-94211656 INTERCHANGEABLE
Standoff,threaded,spacing
Keystone Electronics Corp
5905-00-106-7017 INTERCHANGEABLE
Resistor Set,matched
5310-00-208-95261656 INTERCHANGEABLE
Nut,plain,hexagon
Brinkley Technology Group Llc Dba Hercules Manufacturing
5999-00-234-5815 INTERCHANGEABLE
Contact,electrical
3455-00-236-3622 INTERCHANGEABLE
Reamer,machine
5996-00-267-1135 INTERCHANGEABLE
Amplifier,radio Frequency
4310-00-267-52081656 INTERCHANGEABLE
Ring,piston
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5120-00-277-2311FRS VO810B INTERCHANGEABLE
Wrench,open End
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
4730-00-321-6143 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
5330-00-409-44411656 INTERCHANGEABLE
Gasket
Aerosonic Llc
Cross-Reference Index
Part NumberManufacturer
V2311 Trw Inc Trw Intl Trade Government Sales Dept (USA)
V-1656 PRIMARY Trw Inc Trw Intl Trade Government Sales Dept (USA)
T-2311IN PRIMARY Elgin Industries Inc. Dba (USA)
V-2311 Ertel Engineering Co (USA)
1656 Napasco International Inc (USA)
V1797NSTD Mcquay-Norris Inc Oem Div an Skf Industries Co
V-3210X Clow Corp (USA)
V-1656 PRIMARY Dana Corp Spicer Transmission Div (USA)
1945318 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
Related Parts
5340-00-071-9421INTERCHANGEABLE
STANDOFF,THREADED,SPACING
1656
5905-00-106-7017INTERCHANGEABLE
RESISTOR SET,MATCHED
5310-00-208-9526INTERCHANGEABLE
NUT,PLAIN,HEXAGON
1656
5999-00-234-5815INTERCHANGEABLE
CONTACT,ELECTRICAL
3455-00-236-3622INTERCHANGEABLE
REAMER,MACHINE
5996-00-267-1135INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
4310-00-267-5208INTERCHANGEABLE
RING,PISTON
1656
5120-00-277-2311INTERCHANGEABLE
WRENCH,OPEN END
FRS VO810B
4730-00-321-6143INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
5330-00-409-4441INTERCHANGEABLE
GASKET
1656
5307-00-423-7604INTERCHANGEABLE
STUD,PLAIN
4001656-0
2920-00-622-3788INTERCHANGEABLE
ARMATURE,MOTOR
2084890

Frequently Asked Questions

What is NSN 2805-00-732-5185?

NSN 2805-00-732-5185 is a Valve,poppet,engine, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-732-5185?

NSN 2805-00-732-5185 has 9 cross-referenced part numbers: V2311 (Trw Inc Trw Intl Trade Government Sales Dept), V-1656 (Trw Inc Trw Intl Trade Government Sales Dept), T-2311IN (Elgin Industries Inc. Dba), V-2311 (Ertel Engineering Co), 1656 (Napasco International Inc) and 4 more.

What NSN replaces 2805-00-732-5185?

There are 12 known substitutes for 2805-00-732-5185: 5340-00-071-9421, 5905-00-106-7017, 5310-00-208-9526 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of V-1656?

Key specifications for V-1656: Stem Style: DOUBLE GROOVED; Neck Radius: 0.3750 INCHES NOMINAL IN; Head Height: 0.1250 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-732-5185 still in active supply?

NSN 2805-00-732-5185 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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