PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21593Gear,annulus

Aircraft Parts Corporation · NSN 2925-00-182-9720 · FSC 2925 · No Item Name Available
Verified by PartsTable
NSN 2925-00-182-9720 — this item is cataloged by the U.S. Government under National Stock Number 2925-00-182-9720. Primary manufacturer part number: 21593.
Features
  • Gear,annulus — FSC 2925
  • 2 verified cross-references
  • Primary manufacturer: Aircraft Parts Corporation
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,annulus, cataloged under National Stock Number 2925-00-182-9720, is classified within Federal Supply Class 2925 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Aircraft Parts Corporation. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameGear,annulus
FSC / FSG2925 — No Item Name Available (FSG 29)
ManufacturersAircraft Parts Corporation (CAGE 32970); Skurka Aerospace Inc (CAGE 95270)
Technical Specifications
ParameterValue
NSN2925-00-182-9720
Primary Part Number21593
Item NameGear,annulus
FSC / FSG2925 / 29 — No Item Name Available
ManufacturerAircraft Parts Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-119-7884202PPFS50104 INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
2920-00-441-471521593 INTERCHANGEABLE
Gear
Goodrich Corporation Dba Goodrich Corp
5977-00-868-297723700054 INTERCHANGEABLE
Holder Assembly,electrical Conta
Ward Leonard Ct Llc
5930-01-120-703721593 INTERCHANGEABLE
Switch,thermostatic
Sensata Technologies, Inc. Div Sensata Attleboro
Cross-Reference Index
Part NumberManufacturer
21593 Aircraft Parts Corporation (USA)
21593 Skurka Aerospace Inc (USA)
Related Parts
3110-00-119-7884INTERCHANGEABLE
BEARING,BALL,ANNULAR
202PPFS50104
2920-00-441-4715INTERCHANGEABLE
GEAR
21593
5977-00-868-2977INTERCHANGEABLE
HOLDER ASSEMBLY,ELECTRICAL CONTA
23700054
5930-01-120-7037INTERCHANGEABLE
SWITCH,THERMOSTATIC
21593

Frequently Asked Questions

What is NSN 2925-00-182-9720?

NSN 2925-00-182-9720 is a Gear,annulus, manufactured by Aircraft Parts Corporation, classified under FSC 2925 (No Item Name Available). Status: active.

What are the part numbers for NSN 2925-00-182-9720?

NSN 2925-00-182-9720 has 2 cross-referenced part numbers: 21593 (Aircraft Parts Corporation), 21593 (Skurka Aerospace Inc).

What NSN replaces 2925-00-182-9720?

There are 4 known substitutes for 2925-00-182-9720: 3110-00-119-7884, 2920-00-441-4715, 5977-00-868-2977 and 1 more. Verify interchangeability with system specifications before substitution.

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