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304943 — LOCK,CRANKSHAFT BOL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

304943: LOCK,CRANKSHAFT BOL.

The LOCK,CRANKSHAFT BOL is a the manufacturer industrial component. Key specifications include capacity: 19.0 GALLONS, material: STEEL LOCATION NOT OTHERWISE SPECIFIED, overall_length: 25.875 INCHES NOMINAL IN, pressure_rating: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, overall_diameter: 16.000 INCHES NOMINAL IN, mounting_position: HORIZONTAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-358-4618, 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
304943
NSN: 5330-00-358-4618
NIINs: 003584618, 005104954, 016475311
FSC: 5330 — Packing and Gasket Materials
CAGE: 70143 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
capacity19.0 GALLONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
overall_length25.875 INCHES NOMINAL IN
pressure_rating200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
opening_quantity7
overall_diameter16.000 INCHES NOMINAL IN
mounting_positionHORIZONTAL
overall_thickness0.125 INCHES NOMINAL IN
end_shape_and_locationCONVEX BOTH ENDS
end_item_identification5419-01-543-0158
NSN5330-00-358-4618
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 304943 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: 12
•
SUPPLY ITEMS AND QUANTITIES: 5330-562-1152 GASKET 3
•
NONSUPPLY ITEMS AND QUANTITIES: 71500 1A48 GASKET 1 AND 71500 121-25 GASKET 1 AND 71500 121-56 GASKET 2 AND 71500 20-26 GASKET 3 AND 71500 20-45 GASKET 1 AND 71500 20-61 GASKET 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY12
SUPPLY ITEMS AND QUANTITIES5330-562-1152 GASKET 3
NONSUPPLY ITEMS AND QUANTITIES71500 1A48 GASKET 1 AND 71500 121-25 GASKET 1 AND 71500 121-56 GASKET 2 AND 71500 20-26 GASKET 3 AND 71500 20-45 GASKET 1 AND 71500 20-61 GASKET 1
SUBSTITUTES & CROSS-REFERENCES 1
217Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 304943?
304943 is a LOCK,CRANKSHAFT BOL.
What parts can replace 304943?
There is 1 known substitute for 304943: 217. Substitute compatibility should be verified for your specific system.
What is the NSN for 304943?
304943 is cataloged in the U.S. Government catalog under NSN 5330-00-358-4618. 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.