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Technical Data Sheet
PartsTable / COMPONENT / 6-16918
6-16918 ✓ 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 SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL INTERNALLY MOLDED-IN REINFORCEMENT, seal_width: 0.312 INCHES NOMINAL IN, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, construction: SOLID, outside_diameter: 1.691 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-189-1835, 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
6-16918
NSN: 5330-00-189-1835
FSC: 5330
CAGE: 84659 — SAFEGUARD POWERTECH SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL INTERNALLY MOLDED-IN REINFORCEMENT
seal_width0.312 INCHES NOMINAL IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
constructionSOLID
outside_diameter1.691 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter1.687 INCHES NOMINAL IN
accommodated_shaft_diameter1.250 INCHES NOMINAL IN
cross-sectional_shape_styleDUAL LIP
material_document_and_classificationMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
NSN5330-00-189-1835
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6-16918 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
•
SEAL WIDTH: 0.312 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: DUAL LIP
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
•
MATERIAL: STEEL INTERNALLY MOLDED-IN REINFORCEMENT
•
CONSTRUCTION: SOLID
•
OUTSIDE DIAMETER: 1.691 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.312 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEDUAL LIP
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE SEALING ELEMENT
MATERIALSTEEL INTERNALLY MOLDED-IN REINFORCEMENT
MATERIALSTEEL INSERT
CONSTRUCTIONSOLID
OUTSIDE DIAMETER1.691 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
HOUSING BORE DIAMETER1.687 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
12350Interchangeable
interchangeable cross-reference
interchangeable
N12350Interchangeable
interchangeable cross-reference
interchangeable
212-17439-4Interchangeable
interchangeable cross-reference
interchangeable
1235073P3Interchangeable
interchangeable cross-reference
interchangeable
11675Interchangeable
interchangeable cross-reference
interchangeable
50-590001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6-16918?
6-16918 is a SEAL,PLAIN.
What parts can replace 6-16918?
There are 12 known substitutes for 6-16918: 12350, N12350, 212-17439-4 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6-16918?
6-16918 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-189-1835. 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