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63655 — COUPLING HALF,GROOVED CLAMP CONN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

63655: COUPLING HALF,GROOVED CLAMP CONN.

COUPLING HALF,GROOVED CLAMP CONN. Key specifications include end_item_identification: MAIN FEED PUMP. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-764-5311, 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
63655
NSN: 5331-00-764-5311
NIINs: 007645311, 012022149, 013048156
FSC: 5331 — O-ring
CAGE: 30076 — HYSTER-YALE GROUP, INC. (USA)
SPECIFICATIONS
end_item_identificationMAIN FEED PUMP
NSN5331-00-764-5311
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63655 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: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 2.090 INCHES MINIMUM AND 2.110 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
CENTER HOLE DIAMETER2.090 INCHES MINIMUM AND 2.110 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 8
25K60204Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
682241BNReference document
Same NSN cross-reference
Reference document — Secondary reference
3R5934Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
682241GGReference document
Same NSN cross-reference
Reference document — Secondary reference
A4121Reference document
Same NSN cross-reference
Reference document — Secondary reference
2C2728Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 63655?
63655 is a COUPLING HALF,GROOVED CLAMP CONN.
What parts can replace 63655?
There are 8 known substitutes for 63655: 25K60204, 682241BN, 3R5934 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63655?
63655 is cataloged in the U.S. Government catalog under NSN 5331-00-764-5311. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.