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Technical Data Sheet
PartsTable / O-RING / 8347821
8347821 ✓ 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 TRUNION BOLT is a the manufacturer industrial component. Key specifications include end_item_identification: MK48 MOD6. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-838-8048, 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
8347821
NSN: 5331-00-838-8048
FSC: 5331 — O-RING
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
end_item_identificationMK48 MOD6
NSN5331-00-838-8048
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8347821 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
•
CENTER HOLE DIAMETER: 6.211 INCHES MINIMUM AND 6.257 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER6.211 INCHES MINIMUM AND 6.257 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
1497Interchangeable
interchangeable cross-reference
interchangeable
13889-13836Interchangeable
interchangeable cross-reference
interchangeable
FFB187TYPE751Interchangeable
interchangeable cross-reference
interchangeable
9579Interchangeable
interchangeable cross-reference
interchangeable
TEX-FLUFF W/BAC-STAT 400Interchangeable
interchangeable cross-reference
interchangeable
509Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8347821?
8347821 is a TRUNION BOLT.
What parts can replace 8347821?
There are 24 known substitutes for 8347821: 1497, 13889-13836, FFB187TYPE751 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8347821?
8347821 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-838-8048. 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