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PartsTable / COMPONENT / N304-7-B16
N304-7-B16 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include center_hole_diameter: 3.469 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, material_document_and_classification: MIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-256-0201, 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
N304-7-B16
NSN: 5330-00-256-0201
FSC: 5330
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
center_hole_diameter3.469 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
material_document_and_classificationMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-256-0201
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N304-7-B16 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
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE DIAMETER: 3.469 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER3.469 INCHES MINIMUM AND 3.499 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
523418Interchangeable
interchangeable cross-reference
interchangeable
AN6230B16Interchangeable
interchangeable cross-reference
interchangeable
1376-23-226Interchangeable
interchangeable cross-reference
interchangeable
MS28775-238Interchangeable
interchangeable cross-reference
interchangeable
NG14145 ITEM 92Interchangeable
interchangeable cross-reference
interchangeable
S5901H1297870ITEM190Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N304-7-B16?
N304-7-B16 is a PACKING,PREFORMED.
What parts can replace N304-7-B16?
There are 13 known substitutes for N304-7-B16: 523418, AN6230B16, 1376-23-226 and 10 more. Substitute compatibility should be verified for your specific system.
Is N304-7-B16 still available?
N304-7-B16 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