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5408964 — DISK,SOLID,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5408964: DISK,SOLID,PLAIN.

The DISK,SOLID,PLAIN is a the manufacturer industrial component. Key specifications include diameter: 1.375 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN, material: PLASTIC, thickness: 0.120 INCHES NOMINAL IN, machined_surface_finish: SMOOTH, material_document_and_classification: L-P-504 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-240-1448, 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
5408964
NSN: 5340-01-240-1448
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter1.375 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
materialPLASTIC
thickness0.120 INCHES NOMINAL IN
machined_surface_finishSMOOTH
material_document_and_classificationL-P-504 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-240-1448
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5408964 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
•
MACHINED SURFACE FINISH: SMOOTH
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-504 FED SPEC SINGLE MATERIAL RESPONSE
•
DIAMETER: 1.375 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC
•
THICKNESS: 0.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MACHINED SURFACE FINISHSMOOTH
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-504 FED SPEC SINGLE MATERIAL RESPONSE
DIAMETER1.375 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN
MATERIALPLASTIC
THICKNESS0.120 INCHES NOMINAL IN
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
6873086Reference 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 5408964?
5408964 is a DISK,SOLID,PLAIN.
What parts can replace 5408964?
There is 1 known substitute for 5408964: 6873086. Substitute compatibility should be verified for your specific system.
What is the NSN for 5408964?
5408964 is cataloged in the U.S. Government catalog under NSN 5340-01-240-1448. 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.