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PartsTable / COMPONENT / 3=55
3=55 ✓ 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 3=55 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-602-1398, 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
3=55
NSN: 5330-00-602-1398
FSC: 5330
CAGE: 01638 — MOTT CORP (USA)
SPECIFICATIONS
Part Number3=55
NSN5330-00-602-1398
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3=55 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
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2500 FEET PER MINUTE FT
•
TEMP RATING: -50.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR SEALING ELEMENT
•
SURFACE TREATMENT: PLASTIC CASE
•
SEAL WIDTH: 0.245 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.832 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2500 FEET PER MINUTE FT
TEMP RATING-50.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
MATERIALRUBBER CHLOROPRENE CLASS CR SEALING ELEMENT
SURFACE TREATMENTPLASTIC CASE
SEAL WIDTH0.245 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.832 INCHES NOMINAL IN
END ITEM IDENTIFICATIONW/S: WHIDBEY ISLAND CLASS LSD; FORRESTAL CLASS CV; WASP CLASS LHD; GUIDED MISSILE SYSTEM, RAM EX43; CLOSE IN WEAPON SYSTEM (CIWS-PHALANX)
CASE STYLERECESSED
OUTSIDE DIAMETER1.832 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
11170Interchangeable
interchangeable cross-reference
interchangeable
7055971-18Interchangeable
interchangeable cross-reference
interchangeable
17-1773-02Interchangeable
interchangeable cross-reference
interchangeable
7287390-1Interchangeable
interchangeable cross-reference
interchangeable
11170-1Interchangeable
interchangeable cross-reference
interchangeable
031124GInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3=55?
3=55 is a 3=55.
What parts can replace 3=55?
There are 20 known substitutes for 3=55: 11170, 7055971-18, 17-1773-02 and 17 more. Substitute compatibility should be verified for your specific system.
Is 3=55 still available?
3=55 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