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STYLE 677 ✓ 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 peripheral_diameter: 0.438 INCHES NOMINAL IN, center_hole_diameter: 0.370 INCHES NOMINAL IN, cross-sectional_height: 0.062 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-156-5131, 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
STYLE 677
NSN: 5330-01-156-5131
FSC: 5330
CAGE: 92197 — UTEX INDUSTRIES INC (USA)
SPECIFICATIONS
peripheral_diameter0.438 INCHES NOMINAL IN
center_hole_diameter0.370 INCHES NOMINAL IN
cross-sectional_height0.062 INCHES NOMINAL IN
NSN5330-01-156-5131
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: STYLE 677 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
•
PERIPHERAL DIAMETER: 0.438 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.062 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.370 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL DIAMETER0.438 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.370 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
B2712-4LInterchangeable
interchangeable cross-reference
interchangeable
05-3200-70Interchangeable
interchangeable cross-reference
interchangeable
2-584-4000Interchangeable
interchangeable cross-reference
interchangeable
7874-0Interchangeable
interchangeable cross-reference
interchangeable
63046Interchangeable
interchangeable cross-reference
interchangeable
5000-0120Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STYLE 677?
STYLE 677 is a PACKING,PREFORMED.
What parts can replace STYLE 677?
There are 7 known substitutes for STYLE 677: B2712-4L, 05-3200-70, 2-584-4000 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for STYLE 677?
STYLE 677 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-156-5131. 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