PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21799Stem-Lower,valve

Eaton Aerospace Llc · NSN 4810-01-049-2484 · FSC 4810 · No Item Name Available
Verified by PartsTable
NSN 4810-01-049-2484 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-049-2484. Primary manufacturer part number: 21799.
Features
  • Stem-Lower,valve — FSC 4810
  • General Characteristics Item Description: CRES QQ-S-763,ALLOY 303,PASSIVATED,6.550 IN. LG,0.202 IN. OD IN
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem-Lower,valve, cataloged under National Stock Number 4810-01-049-2484, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4810-01-049-2484
Primary Part Number21799
Item NameStem-Lower,valve
FSC / FSG4810 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc
StatusACTIVE
General Characteristics Item DescriptionCRES QQ-S-763,ALLOY 303,PASSIVATED,6.550 IN. LG,0.202 IN. OD IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3455-00-245-428221799 INTERCHANGEABLE
Blade,hole Saw
Black and Decker Us Inc
5330-01-245-3499871345901 INTERCHANGEABLE
Gasket
Alfa Laval Inc
3020-01-419-641921802 INTERCHANGEABLE
Gear Cluster
Elbitamerica, Inc.
3020-01-420-108821799-2 INTERCHANGEABLE
Gear,spur
Elbitamerica, Inc.
3020-01-420-109021799-1 INTERCHANGEABLE
Gear,spur
Elbitamerica, Inc.
Cross-Reference Index
Part NumberManufacturer
21799 PRIMARY Eaton Aerospace Llc (USA)
Related Parts
3455-00-245-4282INTERCHANGEABLE
BLADE,HOLE SAW
21799
5330-01-245-3499INTERCHANGEABLE
GASKET
871345901
3020-01-419-6419INTERCHANGEABLE
GEAR CLUSTER
21802
3020-01-420-1088INTERCHANGEABLE
GEAR,SPUR
21799-2
3020-01-420-1090INTERCHANGEABLE
GEAR,SPUR
21799-1

Frequently Asked Questions

What is NSN 4810-01-049-2484?

NSN 4810-01-049-2484 is a Stem-Lower,valve, manufactured by Eaton Aerospace Llc, classified under FSC 4810 (No Item Name Available). Status: active.

What are the part numbers for NSN 4810-01-049-2484?

NSN 4810-01-049-2484 has 1 cross-referenced part number: 21799 (Eaton Aerospace Llc).

What NSN replaces 4810-01-049-2484?

There are 5 known substitutes for 4810-01-049-2484: 3455-00-245-4282, 5330-01-245-3499, 3020-01-419-6419 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21799?

Key specifications for 21799: General Characteristics Item Description: CRES QQ-S-763,ALLOY 303,PASSIVATED,6.550 IN. LG,0.202 IN. OD 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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