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Technical Data Sheet

7CMPK3-1/2 — PACKING ASSORTMENT,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7CMPK3-1/2: PACKING ASSORTMENT,PREFORMED.

The PACKING ASSORTMENT,PREFORMED is a the manufacturer industrial component. Key specifications include nonsupply_items_and_quantities: P/N 7CM11 PISTON ID SEAL 1; P/N 7CM1-2 ROD WIPER 1; P/N 7CM3-2 ROD SEAL; P/N 7CM4 HEAD 1; P/N 7CM7 PISTON SEAL 2. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-129-7029, 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
7CMPK3-1/2
NSN: 5330-01-129-7029
FSC: 5330 — Packing and Gasket Materials
CAGE: 71777 — CUNNINGHAM MANUFACTURING CO (USA)
SPECIFICATIONS
component_quantity6
end_item_identificationHYDRAULIC CYLINDER MODEL 7CM-NP1N31-24-5-3000 WITH 3.500 INCH DIAMETER ROD FOR STEERING SYSTEM ONBOARD 140 FT WTGB CLASS COAST GUARD VESSELS CM
nonsupply_items_and_quantitiesP/N 7CM11 PISTON ID SEAL 1; P/N 7CM1-2 ROD WIPER 1; P/N 7CM3-2 ROD SEAL; P/N 7CM4 HEAD 1; P/N 7CM7 PISTON SEAL 2
NSN5330-01-129-7029
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7CMPK3-1/2 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
•
COMPONENT QUANTITY: 6
•
NONSUPPLY ITEMS AND QUANTITIES: P/N 7CM11 PISTON ID SEAL 1; P/N 7CM1-2 ROD WIPER 1; P/N 7CM3-2 ROD SEAL; P/N 7CM4 HEAD 1; P/N 7CM7 PISTON SEAL 2
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY6
NONSUPPLY ITEMS AND QUANTITIESP/N 7CM11 PISTON ID SEAL 1; P/N 7CM1-2 ROD WIPER 1; P/N 7CM3-2 ROD SEAL; P/N 7CM4 HEAD 1; P/N 7CM7 PISTON SEAL 2
END ITEM IDENTIFICATIONHYDRAULIC CYLINDER MODEL 7CM-NP1N31-24-5-3000 WITH 3.500 INCH DIAMETER ROD FOR STEERING SYSTEM ONBOARD 140 FT WTGB CLASS COAST GUARD VESSELS CM
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
C-954-2 ITEM 1,3,4,7,11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 7CMPK3-1/2?
7CMPK3-1/2 is a PACKING ASSORTMENT,PREFORMED.
What parts can replace 7CMPK3-1/2?
There is 1 known substitute for 7CMPK3-1/2: C-954-2 ITEM 1,3,4,7,11. Substitute compatibility should be verified for your specific system.
What is the NSN for 7CMPK3-1/2?
7CMPK3-1/2 is cataloged in the U.S. Government catalog under NSN 5330-01-129-7029. This indicates validated use in U.S. government and defense supply chains.
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