PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33211Seat Seal Kit

Itt Fluid Technology Corp Itt Engineered Valves Div · NSN 4820-01-581-3709 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-581-3709 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-581-3709. Primary manufacturer part number: 33211.
Features
  • Seat Seal Kit — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 1 verified cross-reference
  • Primary manufacturer: Itt Fluid Technology Corp Itt Engineered Valves Div
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seat Seal Kit, cataloged under National Stock Number 4820-01-581-3709, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Itt Fluid Technology Corp Itt Engineered Valves Div. Government technical data includes 2 verified specifications, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-581-3709
Primary Part Number33211
Item NameSeat Seal Kit
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerItt Fluid Technology Corp Itt Engineered Valves Div
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4330-00-216-9235A1042PC23 INTERCHANGEABLE
Filter Body,fluid
Alfa Laval Inc
3455-00-266-9452 INTERCHANGEABLE
File,rotary
6105-00-544-23523321-1 INTERCHANGEABLE
Spring,helical Comp
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
2910-01-324-781433211 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
3110-01-503-2824596-7409226-24 INTERCHANGEABLE
Roller,bearing
The Timken Corporation
6520-01-540-459633211 INTERCHANGEABLE
Seal,viton Ring
Vident
Cross-Reference Index
Part NumberManufacturer
33211 Itt Fluid Technology Corp Itt Engineered Valves Div (USA)
Related Parts
4330-00-216-9235INTERCHANGEABLE
FILTER BODY,FLUID
A1042PC23
3455-00-266-9452INTERCHANGEABLE
FILE,ROTARY
6105-00-544-2352INTERCHANGEABLE
SPRING,HELICAL COMP
3321-1
2910-01-324-7814INTERCHANGEABLE
FILTER ELEMENT,FLUID
33211
3110-01-503-2824INTERCHANGEABLE
ROLLER,BEARING
596-7409226-24
6520-01-540-4596INTERCHANGEABLE
SEAL,VITON RING
33211

Frequently Asked Questions

What is NSN 4820-01-581-3709?

NSN 4820-01-581-3709 is a Seat Seal Kit, manufactured by Itt Fluid Technology Corp Itt Engineered Valves Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-581-3709?

NSN 4820-01-581-3709 has 1 cross-referenced part number: 33211 (Itt Fluid Technology Corp Itt Engineered Valves Div).

What NSN replaces 4820-01-581-3709?

There are 6 known substitutes for 4820-01-581-3709: 4330-00-216-9235, 3455-00-266-9452, 6105-00-544-2352 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33211?

Key specifications for 33211: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 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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