PartsTable
Technical Data Sheet
PartsTable / O-RING / 5-256 N0552
5-256 N0552 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include color: BLACK, special_features: POLYTETRAFLUOROETHYLENE COATED, part_name_assigned_by_controlling_agency: BUNA RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-592-6422, 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
5-256 N0552
NSN: 5331-01-592-6422
FSC: 5331 — O-RING
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
colorBLACK
special_featuresPOLYTETRAFLUOROETHYLENE COATED
part_name_assigned_by_controlling_agencyBUNA RING
NSN5331-01-592-6422
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5-256 N0552 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
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYBUNA RING
SPECIAL FEATURESPOLYTETRAFLUOROETHYLENE COATED
COLORBLACK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
2424-1Interchangeable
interchangeable cross-reference
interchangeable
5256Interchangeable
interchangeable cross-reference
interchangeable
241-0302-00Interchangeable
interchangeable cross-reference
interchangeable
4Q9150Interchangeable
interchangeable cross-reference
interchangeable
12-150Interchangeable
interchangeable cross-reference
interchangeable
A775Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 5-256 N0552?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 5-256 N0552?
5-256 N0552 is a O-RING.
What parts can replace 5-256 N0552?
There are 17 known substitutes for 5-256 N0552: 2424-1, 5256, 241-0302-00 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5-256 N0552?
5-256 N0552 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-592-6422. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 5-256 N0552

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026