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Technical Data Sheet
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28-P-58 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

28-P-58: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-134-0766, 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
28-P-58
NSN: 5331-01-134-0766
FSC: 5331 — O-ring
CAGE: 11757 — PARKER HANNIFIN CORPORATION DIV CHELSEA PRODUCTS DIVISION (USA)
SPECIFICATIONS
Part Number28-P-58
NSN5331-01-134-0766
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28-P-58 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
SUBSTITUTES & CROSS-REFERENCES 8
AS568B-215Reference document
Same NSN cross-reference
Reference document — Secondary reference
CM1-216-B46AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
SP100-20Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
215-B46AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
002390TReference document
Same NSN cross-reference
Reference document — Secondary reference
5331011340766Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28-P-58?
28-P-58 is a O-RING.
What parts can replace 28-P-58?
There are 8 known substitutes for 28-P-58: AS568B-215, CM1-216-B46A, SP100-20 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28-P-58?
28-P-58 is cataloged in the U.S. Government catalog under NSN 5331-01-134-0766. This indicates validated use in U.S. government and defense supply chains.
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