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72902A1 — RING ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

72902A1: RING ASSEMBLY.

The RING ASSEMBLY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-069-4249, 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
72902A1
NSN: 5330-01-069-4249
FSC: 5330 — Packing and Gasket Materials
CAGE: F6117 — DASSAULT AVIATION (FRA)
SPECIFICATIONS
Part Number72902A1
NSN5330-01-069-4249
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 72902A1 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: NON-EXTRUSION RING,MATL POLYTETRAFLUOROETHYLENE PER MIL-R-8791,OD 175.0 MM,22.0 DEG DIAGONAL SLASH 0.00 MM MIN TO 0.18 MM MAX,ID 168.83 MM,THICKNESS 1.17 MM,FSCM 72902 P/N 092-5175001-000-0050,PISTON SEAL,MATL RUBBER,SYNTHETIC,OD 175.55 MM,ID 164.85 MM,THICKNESS 6.79 MM,FSCM 72902 P/N 092-5175001-160-0000 MM
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONNON-EXTRUSION RING,MATL POLYTETRAFLUOROETHYLENE PER MIL-R-8791,OD 175.0 MM,22.0 DEG DIAGONAL SLASH 0.00 MM MIN TO 0.18 MM MAX,ID 168.83 MM,THICKNESS 1.17 MM,FSCM 72902 P/N 092-5175001-000-0050,PISTON SEAL,MATL RUBBER,SYNTHETIC,OD 175.55 MM,ID 164.85 MM,THICKNESS 6.79 MM,FSCM 72902 P/N 092-5175001-160-0000 MM
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
092-56401-160-0050Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
092-5175001-160-0050Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 72902A1?
72902A1 is a RING ASSEMBLY.
What parts can replace 72902A1?
There are 2 known substitutes for 72902A1: 092-56401-160-0050, 092-5175001-160-0050. Substitute compatibility should be verified for your specific system.
What is the NSN for 72902A1?
72902A1 is cataloged in the U.S. Government catalog under NSN 5330-01-069-4249. 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.