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6390882-1 — FASTENER,CYLINDER,SPRING LOADED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6390882-1: FASTENER,CYLINDER,SPRING LOADED.

FASTENER,CYLINDER,SPRING LOADED. Key specifications include length: 4.718 INCHES NOMINAL OVERALL IN, diameter: 1.000 INCHES NOMINAL APERTURE IN, material: UNABLE TO DECODE, handle_type: LEVER, engaging_end_type: EYE, mounting_end_type: PLATE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-498-0740, 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
6390882-1
NSN: 5340-01-498-0740
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length4.718 INCHES NOMINAL OVERALL IN
diameter1.000 INCHES NOMINAL APERTURE IN
materialUNABLE TO DECODE
handle_typeLEVER
engaging_end_typeEYE
mounting_end_typePLATE
mounting_configurationONE HOLE 2.660 INCHES IN DIAMETER IN
end_item_identificationTOW SYSTEM IN
part_name_assigned_by_controlling_agencyEYE, TOW RELEASE
NSN5340-01-498-0740
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6390882-1 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
•
HANDLE TYPE: LEVER
•
MOUNTING END TYPE: PLATE
•
LENGTH: 4.718 INCHES NOMINAL OVERALL IN
•
DIAMETER: 1.000 INCHES NOMINAL APERTURE IN
•
ENGAGING END TYPE: EYE
•
MOUNTING CONFIGURATION: ONE HOLE 2.660 INCHES IN DIAMETER IN
TECHNICAL CHARACTERISTICS
HANDLE TYPELEVER
MOUNTING END TYPEPLATE
LENGTH4.718 INCHES NOMINAL OVERALL IN
DIAMETER1.000 INCHES NOMINAL APERTURE IN
ENGAGING END TYPEEYE
MOUNTING CONFIGURATIONONE HOLE 2.660 INCHES IN DIAMETER IN
PART NAME ASSIGNED BY CONTROLLING AGENCYEYE, TOW RELEASE
END ITEM IDENTIFICATIONTOW SYSTEM IN
MATERIALUNABLE TO DECODE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
7326200 FIND 16Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6390882-1?
6390882-1 is a FASTENER,CYLINDER,SPRING LOADED.
What parts can replace 6390882-1?
There is 1 known substitute for 6390882-1: 7326200 FIND 16. Substitute compatibility should be verified for your specific system.
What is the NSN for 6390882-1?
6390882-1 is cataloged in the U.S. Government catalog under NSN 5340-01-498-0740. 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.