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7268-83-639-6300 — CLAMP,BLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7268-83-639-6300: CLAMP,BLOCK.

The CLAMP,BLOCK is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-719-6035, 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
7268-83-639-6300
NSN: 5340-01-719-6035
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number7268-83-639-6300
NSN5340-01-719-6035
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7268-83-639-6300 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
SUBSTITUTES & CROSS-REFERENCES 5
R5535002-300Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8836396Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
R5535002-100Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LSA003155-100Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LSA003155-300Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7268-83-639-6300?
7268-83-639-6300 is a CLAMP,BLOCK.
What parts can replace 7268-83-639-6300?
There are 5 known substitutes for 7268-83-639-6300: R5535002-300, 8836396, R5535002-100 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7268-83-639-6300?
7268-83-639-6300 is cataloged in the U.S. Government catalog under NSN 5340-01-719-6035. 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.