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051853 — O-RING

✓ Government record, cited
Legrand · ORING SEAL
PRODUCT OVERVIEW

051853: O-RING.

The O-RING is a Legrand industrial component. Key specifications include material: STEEL, overall_width: 6.700 INCHES NOMINAL IN, overall_height: 6.200 INCHES NOMINAL IN, overall_length: 10.700 INCHES NOMINAL IN, special_features: LGTH 120MM, WTH 40MM, 1 CENTER HOLE MM, overall_thickness: 3.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-257-9154, 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
051853
NSN: 5331-01-257-9154
NIINs: 012579154, 015370136, 015480443
FSC: 5331 — O-ring
CAGE: 77851 — MOXY TRUCKS OF AMERICA LLC (USA)
SPECIFICATIONS
materialSTEEL
overall_width6.700 INCHES NOMINAL IN
overall_height6.200 INCHES NOMINAL IN
overall_length10.700 INCHES NOMINAL IN
special_featuresLGTH 120MM, WTH 40MM, 1 CENTER HOLE MM
overall_thickness3.0 MILLIMETERS NOMINAL MM
end_item_identification2355-20-001-9922, CAR, ARMORED, MINE DISPOSAL
voltage_in_volts_and_current_type110.0 AC
part_name_assigned_by_controlling_agencyFLICKER LIGHT SPACER
NSN5331-01-257-9154
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 051853 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
SUBSTITUTES & CROSS-REFERENCES 1
5051853Reference document
Same NSN cross-reference
Reference document — Secondary 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 051853?
051853 is a O-RING manufactured by Legrand.
What parts can replace 051853?
There is 1 known substitute for 051853: 5051853. Substitute compatibility should be verified for your specific system.
What is the NSN for 051853?
051853 is cataloged in the U.S. Government catalog under NSN 5331-01-257-9154. 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.