PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21505Actuator Sleeve,lower

Eaton Aerospace Llc · NSN 4810-00-499-9992 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-00-499-9992 — this item is cataloged by the U.S. Government under National Stock Number 4810-00-499-9992. Primary manufacturer part number: 21505.
Features
  • Actuator Sleeve,lower — FSC 4810
  • General Characteristics Item Description: 0.505 IN. O/A LG IN
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Actuator Sleeve,lower, cataloged under National Stock Number 4810-00-499-9992, is classified within Federal Supply Class 4810 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-00-499-9992
Primary Part Number21505
Item NameActuator Sleeve,lower
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc
StatusACTIVE
General Characteristics Item Description0.505 IN. O/A LG IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-004-32422/1505 INTERCHANGEABLE
Packing,preformed
Scotsman Industries Inc Div Scotsman Ice Systems
3610-00-226-8197 INTERCHANGEABLE
Stud,roller Drive Cam
5999-00-364-076821-505 INTERCHANGEABLE
Contact Assembly,electrical
Eaton Corp Opns & Technical Center
5998-01-072-2472 INTERCHANGEABLE
Circuit Card Assembly
5340-01-083-795266B839 INTERCHANGEABLE
Plate,mending
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5120-01-122-295721-505 INTERCHANGEABLE
Centralizer,timing
Bosch Automotive Service Solutions Ltd
5920-01-285-761821505 INTERCHANGEABLE
Arrester,electrical Surge
Computer Power Solutions
5130-01-389-8450BWD482 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5950-01-406-243521505 INTERCHANGEABLE
Coil,radio Frequency
Robert M. Hadley Company, Inc.
Cross-Reference Index
Part NumberManufacturer
21505 PRIMARY Eaton Aerospace Llc (USA)
Related Parts
5330-00-004-3242INTERCHANGEABLE
PACKING,PREFORMED
2/1505
3610-00-226-8197INTERCHANGEABLE
STUD,ROLLER DRIVE CAM
5999-00-364-0768INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
21-505
5998-01-072-2472INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5340-01-083-7952INTERCHANGEABLE
PLATE,MENDING
66B839
5120-01-122-2957INTERCHANGEABLE
CENTRALIZER,TIMING
21-505
5920-01-285-7618INTERCHANGEABLE
ARRESTER,ELECTRICAL SURGE
21505
5130-01-389-8450INTERCHANGEABLE
SOCKET,SOCKET WRENCH
BWD482
5950-01-406-2435INTERCHANGEABLE
COIL,RADIO FREQUENCY
21505

Frequently Asked Questions

What is NSN 4810-00-499-9992?

NSN 4810-00-499-9992 is a Actuator Sleeve,lower, manufactured by Eaton Aerospace Llc, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-00-499-9992?

NSN 4810-00-499-9992 has 1 cross-referenced part number: 21505 (Eaton Aerospace Llc).

What NSN replaces 4810-00-499-9992?

There are 9 known substitutes for 4810-00-499-9992: 5330-00-004-3242, 3610-00-226-8197, 5999-00-364-0768 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21505?

Key specifications for 21505: General Characteristics Item Description: 0.505 IN. O/A LG IN. 1 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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