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JR-50B — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

JR-50B: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include peripheral_diameter: 2.058 INCHES MINIMUM AND 2.070 INCHES MAXIMUM IN, center_hole_diameter: 1.854 INCHES MINIMUM AND 1.878 INCHES MAXIMUM IN, cross-sectional_height: 0.0595 INCHES MINIMUM AND 0.0655 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-165-4333, 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
JR-50B
NSN: 5330-01-165-4333
FSC: 5330 — Packing and Gasket Materials
CAGE: 62781 — AUTOMATIC TRANSMISSION PARTS INC (USA)
SPECIFICATIONS
peripheral_diameter2.058 INCHES MINIMUM AND 2.070 INCHES MAXIMUM IN
center_hole_diameter1.854 INCHES MINIMUM AND 1.878 INCHES MAXIMUM IN
cross-sectional_height0.0595 INCHES MINIMUM AND 0.0655 INCHES MAXIMUM IN
NSN5330-01-165-4333
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: JR-50B 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
•
CROSS-SECTIONAL HEIGHT: 0.0595 INCHES MINIMUM AND 0.0655 INCHES MAXIMUM IN
•
PERIPHERAL DIAMETER: 2.058 INCHES MINIMUM AND 2.070 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.854 INCHES MINIMUM AND 1.878 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.0595 INCHES MINIMUM AND 0.0655 INCHES MAXIMUM IN
PERIPHERAL DIAMETER2.058 INCHES MINIMUM AND 2.070 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.854 INCHES MINIMUM AND 1.878 INCHES MAXIMUM IN
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 1
8626356Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is JR-50B?
JR-50B is a RETAINER,PACKING.
What parts can replace JR-50B?
There is 1 known substitute for JR-50B: 8626356. Substitute compatibility should be verified for your specific system.
What is the NSN for JR-50B?
JR-50B is cataloged in the U.S. Government catalog under NSN 5330-01-165-4333. 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.