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CAP76B ✓ 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 MATERIAL is a the manufacturer industrial component. Key specifications include length: 2.660 INCHES NOMINAL IN, material: IRON ALLOY, fabrication_method: BRAIDED, cross-sectional_width: 0.190 INCHES NOMINAL IN, cross-sectional_height: 0.190 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-684-2390, 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
CAP76B
NSN: 5330-00-684-2390
FSC: 5330
CAGE: 75165 — JOHNS MANVILLE INTL (USA)
SPECIFICATIONS
length2.660 INCHES NOMINAL IN
materialIRON ALLOY
fabrication_methodBRAIDED
cross-sectional_width0.190 INCHES NOMINAL IN
cross-sectional_height0.190 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE
NSN5330-00-684-2390
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CAP76B 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 WIDTH: 0.190 INCHES NOMINAL IN
•
LENGTH: 2.660 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.190 INCHES NOMINAL IN
•
MATERIAL: IRON ALLOY
•
FABRICATION METHOD: BRAIDED
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL WIDTH0.190 INCHES NOMINAL IN
LENGTH2.660 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.190 INCHES NOMINAL IN
MATERIALIRON ALLOY
FABRICATION METHODBRAIDED
CROSS-SECTIONAL SHAPE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3350-101000-3161Interchangeable
interchangeable cross-reference
interchangeable
N16R49858-446Interchangeable
interchangeable cross-reference
interchangeable
RC20BF751JInterchangeable
interchangeable cross-reference
interchangeable
6850PL0850936Interchangeable
interchangeable cross-reference
interchangeable
DC340Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-47113Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CAP76B?
CAP76B is a PACKING MATERIAL.
What parts can replace CAP76B?
There are 12 known substitutes for CAP76B: 3350-101000-3161, N16R49858-446, RC20BF751J and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CAP76B?
CAP76B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-684-2390. 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