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Technical Data Sheet
PartsTable / COMPONENT / 6550-4
6550-4 ✓ 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

GAUZE,ABSORBENT,IODOFORM IMPREGN. Key specifications include part_name_assigned_by_controlling_agency: NU GAUZE 5 YDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-535-0921, 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
6550-4
NSN: 5330-00-535-0921
FSC: 5330
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
special_features1/4 IN. X 5 YDS; CONSTRUCTED FROM SPECIALLY WOVEN RAVEL-RESISTANT GAUZE; READY-TO-USE AS STERILE NASAL PACKING OR DRAINAGE WICKS; WITH 5 PCT IODOFORM IN
part_name_assigned_by_controlling_agencyNU GAUZE 5 YDS
NSN5330-00-535-0921
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6550-4 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
•
MATERIAL: ASBESTOS SEALING ELEMENT
•
HOUSING BORE DIAMETER: 4.906 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
SEAL WIDTH: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT DIAMETER: 4.521 INCHES MINIMUM AND 4.526 INCHES MAXIMUM IN
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALASBESTOS SEALING ELEMENT
HOUSING BORE DIAMETER4.906 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC INTERNALLY MOLDED-IN REINFORCEMENT
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
SEAL WIDTH0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER4.521 INCHES MINIMUM AND 4.526 INCHES MAXIMUM IN
CONSTRUCTIONSOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
60601-1Interchangeable
interchangeable cross-reference
interchangeable
CBEK60601-1Interchangeable
interchangeable cross-reference
interchangeable
6550-4Interchangeable
interchangeable cross-reference
interchangeable
18287ADXInterchangeable
interchangeable cross-reference
interchangeable
18287Interchangeable
interchangeable cross-reference
interchangeable
214Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6550-4?
6550-4 is a GAUZE,ABSORBENT,IODOFORM IMPREGN.
What parts can replace 6550-4?
There are 14 known substitutes for 6550-4: 60601-1, CBEK60601-1, 6550-4 and 11 more. Substitute compatibility should be verified for your specific system.
Is 6550-4 still available?
6550-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026