PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3581-216O-Ring

Sae International Dba Sae International · NSN 5331-01-608-3448 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-608-3448 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-608-3448. Primary manufacturer part number: AS3581-216.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN
  • Outside Diameter: 1.387 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • 6 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
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 5331-01-608-3448, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-608-3448
Primary Part NumberAS3581-216
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN
Outside Diameter1.387 INCHES NOMINAL IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5331-00-166-1110 INTERCHANGEABLE
O-Ring
5331-00-425-06492313-0078 INTERCHANGEABLE
O-Ring
Circor Aerospace, Inc. Dba Circor Aerospace Inc
5330-01-060-3404 INTERCHANGEABLE
Packing,preformed
5331-01-267-9175000216EE INTERCHANGEABLE
O-Ring
Admiral Valve Llc Dba Cpv Manufacturing
Cross-Reference Index
Part NumberManufacturer
D50-0072 ITEM 2 Dante Valve Company (USA)
M83248/2-216 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AS3581-216 PRIMARY Sae International Dba Sae International (USA)
D50-0072 ITEM 2 Danco Valve Company (USA)
SAE-AS3581 Sae International Dba Sae International (USA)
AS3581-216 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-166-1110INTERCHANGEABLE
O-RING
5331-00-425-0649INTERCHANGEABLE
O-RING
2313-0078
5330-01-060-3404INTERCHANGEABLE
PACKING,PREFORMED
5331-01-267-9175INTERCHANGEABLE
O-RING
000216EE

Frequently Asked Questions

What is NSN 5331-01-608-3448?

NSN 5331-01-608-3448 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-608-3448?

NSN 5331-01-608-3448 has 6 cross-referenced part numbers: D50-0072 ITEM 2 (Dante Valve Company), M83248/2-216 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AS3581-216 (Sae International Dba Sae International), D50-0072 ITEM 2 (Danco Valve Company), SAE-AS3581 (Sae International Dba Sae International) and 1 more.

What NSN replaces 5331-01-608-3448?

There are 4 known substitutes for 5331-01-608-3448: 5331-00-166-1110, 5331-00-425-0649, 5330-01-060-3404 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3581-216?

Key specifications for AS3581-216: Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; End Item Identification: VALVE ANGLE REL; Center Hole Diameter: 1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN; Outside Diameter: 1.387 INCHES NOMINAL IN. 7 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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