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501391 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The PKG VEE-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, thread_class: 2B, thread_series: UNEF, overall_height: 0.219 INCHES NOMINAL IN, sealing_method: COMPRESSION, mounting_method: SCREW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-236-1502, 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
501391
NSN: 5330-00-236-1502
FSC: 5330
CAGE: 47496 — THE DEWEY ELECTRONICS CORPORATION DIV PITOMETER LOG DIVISION (USA)
SPECIFICATIONS
materialRUBBER SILICONE BODY
thread_class2B
thread_seriesUNEF
overall_height0.219 INCHES NOMINAL IN
sealing_methodCOMPRESSION
mounting_methodSCREW
style_designatorTHRU-HOLE
nominal_thread_size0.375 INCHES IN
base_thread_locationINTERNAL
body_outside_diameter0.625 INCHES NOMINAL IN
opening_inside_diameter0.125 INCHES NOMINAL IN
mounting_device_quantity1
NSN5330-00-236-1502
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 501391 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: RUBBER SYNTHETIC MIL-STD-417,SC 610,55 MIN 65 MAXDUROMETER,6.940 IN. LG,2.290 IN. W IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONRUBBER SYNTHETIC MIL-STD-417,SC 610,55 MIN 65 MAXDUROMETER,6.940 IN. LG,2.290 IN. W IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
7443Interchangeable
interchangeable cross-reference
interchangeable
02-20-47411-181 ITEM 20Interchangeable
interchangeable cross-reference
interchangeable
151-26813Interchangeable
interchangeable cross-reference
interchangeable
611A6037Interchangeable
interchangeable cross-reference
interchangeable
K7128168P2Interchangeable
interchangeable cross-reference
interchangeable
501391Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501391?
501391 is a PKG VEE-RING.
What parts can replace 501391?
There are 7 known substitutes for 501391: 7443, 02-20-47411-181 ITEM 20, 151-26813 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 501391?
501391 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-236-1502. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026