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Technical Data Sheet
PartsTable / MRO / 21504
21504 ✓ Verified by PartsTable
Legrand · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

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He is battling with the Avengers against the supervillain Ultron. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-004-3362, 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
MRO→ MRO_GENERAL→ 21504
NSN: 5330-00-004-3362
FSC: 5330
CAGE: 49524 — SCOTSMAN INDUSTRIES INC DIV SCOTSMAN ICE SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER
end_styleOFFSET HALF LOOP, LEFT END FIRST END
pin_length3.500 INCHES MINIMUM IN
point_size0.375 INCHES IN
body_length1.355 INCHES MINIMUM AND 1.453 INCHES MAXIMUM IN
hook_radius0.047 INCHES NOMINAL BOTH ENDS IN
shank_shapeHEXAGON
constructionLAMINATED
terminal_typeTAB, SOLDER LUG
overall_length5.370 INCHES MINIMUM AND 5.430 INCHES MAXIMUM IN
inside_diameter0.281 INCHES NOMINAL IN
mounting_methodTHREADED BUSHING
NSN5330-00-004-3362
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21504 MFR: Legrand ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
21504Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-831Interchangeable
interchangeable cross-reference
interchangeable
71504Interchangeable
interchangeable cross-reference
interchangeable
1809000Interchangeable
interchangeable cross-reference
interchangeable
10105984Interchangeable
interchangeable cross-reference
interchangeable
10T1MB02ZInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21504?
21504 is a TERMINAL STRIP,GROUNDING manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21504?
There are 14 known substitutes for 21504: 21504, GGG-P-831, 71504 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21504?
21504 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-004-3362. 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