PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H225Adapter,engine Trim

Howell Instruments, Inc. Dba Howell Instruments Inc · NSN 4920-00-176-8339 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-176-8339 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-176-8339. Primary manufacturer part number: H225.
Features
  • Adapter,engine Trim — FSC 4920
  • 2 verified cross-references
  • Primary manufacturer: Howell Instruments, Inc. Dba Howell Instruments Inc
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Adapter,engine Trim, cataloged under National Stock Number 4920-00-176-8339, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Howell Instruments, Inc. Dba Howell Instruments 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 NameAdapter,engine Trim
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersRtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Howell Instruments, Inc. Dba Howell Instruments Inc (CAGE 98869)
Technical Specifications
ParameterValue
NSN4920-00-176-8339
Primary Part NumberH225
Item NameAdapter,engine Trim
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerHowell Instruments, Inc. Dba Howell Instruments Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3020-00-006-7462GC15-25 INTERCHANGEABLE
Gear,spur
Secs Inc
3110-00-040-9778 INTERCHANGEABLE
Retainer and Rollers,bearing
3110-00-184-5428NRA212 INTERCHANGEABLE
Roller,bearing
Rbc Bearings Incorporated Div West Trenton Division
5930-00-309-4379H2-25 INTERCHANGEABLE
Switch,sensitive
Safran Power Usa, Llc
5999-00-383-2309221464PC108 INTERCHANGEABLE
Heater,thermal Release
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-818-9933H22-5 INTERCHANGEABLE
Nut,self-Locking,double Hexagon
Howmet Global Fastening Systems Inc
Cross-Reference Index
Part NumberManufacturer
PWA23392 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
H225 PRIMARY Howell Instruments, Inc. Dba Howell Instruments Inc (USA)
Related Parts
3020-00-006-7462INTERCHANGEABLE
GEAR,SPUR
GC15-25
3110-00-040-9778INTERCHANGEABLE
RETAINER AND ROLLERS,BEARING
3110-00-184-5428INTERCHANGEABLE
ROLLER,BEARING
NRA212
5930-00-309-4379INTERCHANGEABLE
SWITCH,SENSITIVE
H2-25
5999-00-383-2309INTERCHANGEABLE
HEATER,THERMAL RELEASE
221464PC108
5310-00-818-9933INTERCHANGEABLE
NUT,SELF-LOCKING,DOUBLE HEXAGON
H22-5

Frequently Asked Questions

What is NSN 4920-00-176-8339?

NSN 4920-00-176-8339 is a Adapter,engine Trim, manufactured by Howell Instruments, Inc. Dba Howell Instruments Inc, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-176-8339?

NSN 4920-00-176-8339 has 2 cross-referenced part numbers: PWA23392 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), H225 (Howell Instruments, Inc. Dba Howell Instruments Inc).

What NSN replaces 4920-00-176-8339?

There are 6 known substitutes for 4920-00-176-8339: 3020-00-006-7462, 3110-00-040-9778, 3110-00-184-5428 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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