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A02RS265-1 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A02RS265-1: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING CASE, case_style: SQUARE, seal_width: 0.348 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, surface_treatment: PASSIVATE CASE, housing_bore_diameter: 4.2475 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN, sealing_element_style: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-043-4687, 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
A02RS265-1
NSN: 5330-00-043-4687
FSC: 5330 — Packing and Gasket Materials
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING CASE
case_styleSQUARE
seal_width0.348 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
surface_treatmentPASSIVATE CASE
housing_bore_diameter4.2475 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter3.312 INCHES NOMINAL IN
NSN5330-00-043-4687
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A02RS265-1 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAL WIDTH: 0.348 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 4.2475 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 3.312 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE CASE
•
MATERIAL: STEEL CORROSION RESISTING CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.348 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER4.2475 INCHES MINIMUM AND 4.2505 INCHES MAXIMUM IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER3.312 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE CASE
MATERIALSTEEL CORROSION RESISTING CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
510958Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A02RS265-1?
A02RS265-1 is a SEAL,PLAIN ENCASED.
What parts can replace A02RS265-1?
There is 1 known substitute for A02RS265-1: 510958. Substitute compatibility should be verified for your specific system.
What is the NSN for A02RS265-1?
A02RS265-1 is cataloged in the U.S. Government catalog under NSN 5330-00-043-4687. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.