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373-8973 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

373-8973: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: CIRCULAR, material: STEEL, thickness: 4.0 MILLIMETERS NOMINAL MM, outside_diameter: 281.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-680-7845, 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
373-8973
NSN: 5340-01-680-7845
FSC: 5340 — Hardware, Commercial
CAGE: 34914 — HIAB USA INC (USA)
SPECIFICATIONS
shapeCIRCULAR
materialSTEEL
thickness4.0 MILLIMETERS NOMINAL MM
outside_diameter281.0 MILLIMETERS NOMINAL MM
NSN5340-01-680-7845
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 373-8973 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
•
SHAPE: CIRCULAR
•
OUTSIDE DIAMETER: 281.0 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL
•
THICKNESS: 4.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
SHAPECIRCULAR
OUTSIDE DIAMETER281.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL
THICKNESS4.0 MILLIMETERS NOMINAL MM
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
4444690Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 373-8973?
373-8973 is a PLATE,MOUNTING.
What parts can replace 373-8973?
There is 1 known substitute for 373-8973: 4444690. Substitute compatibility should be verified for your specific system.
What is the NSN for 373-8973?
373-8973 is cataloged in the U.S. Government catalog under NSN 5340-01-680-7845. 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.