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PartsTable / COMPONENT / SM-C-447321
SM-C-447321 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CATCH,CLAMPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, design_type: LOOP ENGAGING, hole_diameter: 0.159 INCHES NOMINAL IN, overall_width: 1.160 INCHES NOMINAL IN, overall_height: 0.410 INCHES MAXIMUM IN, overall_length: 2.730 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-973-1730, 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
SM-C-447321
NSN: 5340-00-973-1730
FSC: 5340
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
design_typeLOOP ENGAGING
hole_diameter0.159 INCHES NOMINAL IN
hole_quantity2
overall_width1.160 INCHES NOMINAL IN
overall_height0.410 INCHES MAXIMUM IN
overall_length2.730 INCHES NOMINAL IN
operation_methodLEVER
style_designatorLEVER
surface_treatmentPAINT OVERALL
engaging_surface_width0.620 INCHES NOMINAL IN
engaging_surface_thickness0.090 INCHES NOMINAL IN
NSN5340-00-973-1730
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SM-C-447321 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
•
SURFACE TREATMENT: PAINT OVERALL
•
STYLE DESIGNATOR: LEVER
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.159 INCHES NOMINAL IN
•
DESIGN TYPE: LOOP ENGAGING
•
ENGAGING SURFACE WIDTH: 0.620 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPAINT OVERALL
STYLE DESIGNATORLEVER
MATERIALSTEEL OVERALL
OVERALL WIDTH1.160 INCHES NOMINAL IN
HOLE DIAMETER0.159 INCHES NOMINAL IN
DESIGN TYPELOOP ENGAGING
ENGAGING SURFACE WIDTH0.620 INCHES NOMINAL IN
OVERALL HEIGHT0.410 INCHES MAXIMUM IN
OVERALL LENGTH2.730 INCHES NOMINAL IN
ENGAGING SURFACE THICKNESS0.090 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
52-C-4117-1Interchangeable
interchangeable cross-reference
interchangeable
44732-1Interchangeable
interchangeable cross-reference
interchangeable
44732Interchangeable
interchangeable cross-reference
interchangeable
8-8 070432CInterchangeable
interchangeable cross-reference
interchangeable
8442238Interchangeable
interchangeable cross-reference
interchangeable
J514Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-C-447321?
SM-C-447321 is a CATCH,CLAMPING.
What parts can replace SM-C-447321?
There are 11 known substitutes for SM-C-447321: 52-C-4117-1, 44732-1, 44732 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-C-447321?
SM-C-447321 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-973-1730. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026