PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS3581-128O-Ring

Sae International Dba Sae International · NSN 5331-01-104-4906 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-104-4906 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-104-4906. Primary manufacturer part number: AS3581-128.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 1.693 INCHES NOMINAL IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL
  • Center Hole Diameter: 1.475 INCHES MINIMUM AND 1.499 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Elongation Percentage: 125 MAXIMUM
  • 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 5331-01-104-4906, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-104-4906
Primary Part NumberAS3581-128
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusACTIVE
Outside Diameter1.693 INCHES NOMINAL IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Hardness Rating90.0 SHORE DUROMETER A NOMINAL
Center Hole Diameter1.475 INCHES MINIMUM AND 1.499 INCHES MAXIMUM IN
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Elongation Percentage125 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4810-00-309-152424730 INTERCHANGEABLE
Valve,solenoid
Hydro-Aire Aerospace Corp
1560-00-319-1006ST7M192-2 INTERCHANGEABLE
Drain Assembly,engine
The Boeing Company Div Defense
5940-00-466-275024730 INTERCHANGEABLE
Terminal,stud
Hamilton Sundstrand Corporation Dba Collins Aerospace
5950-00-504-7736 INTERCHANGEABLE
Transformer,power
6920-00-657-282224730 INTERCHANGEABLE
Cable Assy
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
3110-00-966-97342080656 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-01-050-3840AS568-128MILG23652TY2 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
6680-01-225-644724730 INTERCHANGEABLE
Indicator,sight,liquid
Alter Harry Co the Div of T E C
5330-01-241-1926 INTERCHANGEABLE
Packing,preformed
5905-01-257-0405 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Cross-Reference Index
Part NumberManufacturer
D50-0013 ITEM 3 Danco Valve Company (USA)
D50-0013 ITEM 3 Dante Valve Company (USA)
1736931 Zf Industrieantriebe Witten Gmbh (DEU)
AS3581-128 Society of Automotive Engineers Inc (USA)
M83248/2-128 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SAE-AS3581 Sae International Dba Sae International (USA)
MIL-R-83248/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
V92128 Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division (USA)
AS568-128MILG23 652TY2 Zf Industrieantriebe Witten Gmbh (DEU)
24730 Zf Industrieantriebe Witten Gmbh (DEU)
AS3581-128 PRIMARY Sae International Dba Sae International (USA)
5331PL1260360 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
4810-00-309-1524INTERCHANGEABLE
VALVE,SOLENOID
24730
1560-00-319-1006INTERCHANGEABLE
DRAIN ASSEMBLY,ENGINE
ST7M192-2
5940-00-466-2750INTERCHANGEABLE
TERMINAL,STUD
24730
5950-00-504-7736INTERCHANGEABLE
TRANSFORMER,POWER
6920-00-657-2822INTERCHANGEABLE
CABLE ASSY
24730
3110-00-966-9734INTERCHANGEABLE
BEARING,BALL,ANNULAR
2080656
5331-01-050-3840INTERCHANGEABLE
O-RING
AS568-128MILG23652TY2
6680-01-225-6447INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
24730
5330-01-241-1926INTERCHANGEABLE
PACKING,PREFORMED
5905-01-257-0405INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5331-01-626-6210INTERCHANGEABLE
O-RING
5306-01-707-4424INTERCHANGEABLE
BOLT,MACHINE
34-730

Frequently Asked Questions

What is NSN 5331-01-104-4906?

NSN 5331-01-104-4906 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 5331-01-104-4906?

NSN 5331-01-104-4906 has 12 cross-referenced part numbers: D50-0013 ITEM 3 (Danco Valve Company), D50-0013 ITEM 3 (Dante Valve Company), 1736931 (Zf Industrieantriebe Witten Gmbh), AS3581-128 (Society of Automotive Engineers Inc), M83248/2-128 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 7 more.

What NSN replaces 5331-01-104-4906?

There are 12 known substitutes for 5331-01-104-4906: 4810-00-309-1524, 1560-00-319-1006, 5940-00-466-2750 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS3581-128?

Key specifications for AS3581-128: Outside Diameter: 1.693 INCHES NOMINAL IN; Material: RUBBER FLUOROCARBON CLASS FPM; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 1.475 INCHES MINIMUM AND 1.499 INCHES MAXIMUM IN. 6 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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