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GRP78-137 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GRP78-137: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-046-3140, 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
GRP78-137
NSN: 5331-01-046-3140
FSC: 5331 — O-ring
CAGE: 98963 — PARKER HANNIFIN CORPORATION DBA WILKERSON DIV PNEUMATIC DIVISION NORTH AMERICA (USA)
SPECIFICATIONS
Part NumberGRP78-137
NSN5331-01-046-3140
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GRP78-137 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
78-137-000Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
K41RB72112Reference document
Same NSN cross-reference
Reference document — Secondary reference
78-137Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
010463140Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VRP-95-783Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GRP78-137?
GRP78-137 is a O-RING.
What parts can replace GRP78-137?
There are 5 known substitutes for GRP78-137: 78-137-000, K41RB72112, 78-137 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GRP78-137?
GRP78-137 is cataloged in the U.S. Government catalog under NSN 5331-01-046-3140. This indicates validated use in U.S. government and defense supply chains.
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