Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW
The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, outside_diameter: 1.066 INCHES NOMINAL IN, center_hole_diameter: 0.917 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-037-3444, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
AS3581-021
NSN:5331-01-037-3444 FSC:5331 — O-RING CAGE:0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
material
RUBBER FLUOROCARBON CLASS FPM
outside_diameter
1.066 INCHES NOMINAL IN
center_hole_diameter
0.917 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
elongation_percentage
125 MAXIMUM
cross-sectional_height
0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
criticality_code_justification
ZZZY
material_document_and_classification
MIL-G-23652,TY 2 MIL SPEC SINGLE MATERIAL RESPONSE
reference_number_differentiating_characteristics
CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN
5331-01-037-3444
COMPONENT DIAGRAM
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CENTER HOLE DIAMETER: 0.917 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
OUTSIDE DIAMETER: 1.066 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23652,TY 2 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATION
ZZZY
MATERIAL
RUBBER FLUOROCARBON CLASS FPM
ELONGATION PERCENTAGE
125 MAXIMUM
CENTER HOLE DIAMETER
0.917 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
OUTSIDE DIAMETER
1.066 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT
0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION
MIL-G-23652,TY 2 MIL SPEC SINGLE MATERIAL RESPONSE
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FREQUENTLY ASKED QUESTIONS
What is AS3581-021?
AS3581-021 is a O-RING.
What parts can replace AS3581-021?
There are 27 known substitutes for AS3581-021: NAS1594-007, 2-007V709-90, A211-8 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS3581-021?
AS3581-021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-037-3444. This indicates validated use in U.S. government and defense supply chains.
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