PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D3800-A066 ITEM 25O-Ring

Danco Valve Company · NSN 5331-01-406-4381 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-406-4381 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-406-4381. Primary manufacturer part number: D3800-A066 ITEM 25.
Features
  • O-Ring — FSC 5331
  • Criticality Code Justification: ZZZW
  • Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • Cross-Sectional Height: 0.139 INCHES NOMINAL IN
  • Color: BLACK OR BROWN
  • Center Hole Diameter: 1.484 INCHES NOMINAL IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • 12 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-406-4381, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Danco Valve Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-01-406-4381
Primary Part NumberD3800-A066 ITEM 25
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerDanco Valve Company
StatusCANCELLED
Criticality Code JustificationZZZW
Departure From Cited DocumentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Cross-Sectional Height0.139 INCHES NOMINAL IN
ColorBLACK OR BROWN
Center Hole Diameter1.484 INCHES NOMINAL IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5331-01-006-2129AS3581-222 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-192-4020 INTERCHANGEABLE
O-Ring
5331-01-415-0659 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
D3800-A066 ITEM 25 Danco Valve Company (USA)
AS3581-222CP Society of Automotive Engineers Inc (USA)
AS3581-222CP Sae International Dba Sae International (USA)
801-6404716 FIND 23CP Naval Inventory Control Point Mechanicsburg (USA)
M83248/2-222CP Naval Inventory Control Point Mechanicsburg (USA)
M83248/2-222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
D3800-A066 ITEM 25 Dante Valve Company (USA)
211004785CP Naval Inventory Control Point Mechanicsburg (USA)
211004785 Naval Sea Systems Command (USA)
801-6404716 FIND 23 Naval Sea Systems Command (USA)
SAE-AS3581 Sae International Dba Sae International (USA)
6404716 FIND 23CP Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5331-01-006-2129INTERCHANGEABLE
O-RING
AS3581-222
5331-01-192-4020INTERCHANGEABLE
O-RING
5331-01-415-0659INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-406-4381?

NSN 5331-01-406-4381 is a O-Ring, manufactured by Danco Valve Company, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-406-4381?

NSN 5331-01-406-4381 has 12 cross-referenced part numbers: D3800-A066 ITEM 25 (Danco Valve Company), AS3581-222CP (Society of Automotive Engineers Inc), AS3581-222CP (Sae International Dba Sae International), 801-6404716 FIND 23CP (Naval Inventory Control Point Mechanicsburg), M83248/2-222CP (Naval Inventory Control Point Mechanicsburg) and 7 more.

What NSN replaces 5331-01-406-4381?

There are 3 known substitutes for 5331-01-406-4381: 5331-01-006-2129, 5331-01-192-4020, 5331-01-415-0659. Verify interchangeability with system specifications before substitution.

What are the specifications of D3800-A066 ITEM 25?

Key specifications for D3800-A066 ITEM 25: Criticality Code Justification: ZZZW; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Cross-Sectional Height: 0.139 INCHES NOMINAL IN; Color: BLACK OR BROWN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-406-4381 still in active supply?

NSN 5331-01-406-4381 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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