PartsTable
Technical Data Sheet
PartsTable / COMPONENT / NS-3983 FIND 18 1.5IN
NS-3983 FIND 18 1.5IN ✓ 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 NS-3983 FIND 18 1.5IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-238-4616, 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
NS-3983 FIND 18 1.5IN
NSN: 5330-01-238-4616
FSC: 5330
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
Part NumberNS-3983 FIND 18 1.5IN
NSN5330-01-238-4616
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NS-3983 FIND 18 1.5IN 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: RUBBER FLUOROCARBON CLASS FPM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE DIAMETER: 1.781 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 2.219 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: D
•
CROSS-SECTIONAL HEIGHT: 0.266 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER1.781 INCHES NOMINAL IN
PERIPHERAL DIAMETER2.219 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLED
CROSS-SECTIONAL HEIGHT0.266 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
U5R7723312-883BInterchangeable
interchangeable cross-reference
interchangeable
642AS2654-1Interchangeable
interchangeable cross-reference
interchangeable
4586434Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy NS-3983 FIND 18 1.5IN?
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 NS-3983 FIND 18 1.5IN?
NS-3983 FIND 18 1.5IN is a NS-3983 FIND 18 1.5IN.
What parts can replace NS-3983 FIND 18 1.5IN?
There are 3 known substitutes for NS-3983 FIND 18 1.5IN: U5R7723312-883B, 642AS2654-1, 4586434. Substitute compatibility should be verified for your specific system.
What is the NSN for NS-3983 FIND 18 1.5IN?
NS-3983 FIND 18 1.5IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-238-4616. 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 — NS-3983 FIND 18 1.5IN

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