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51852 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

51852: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, rim_surface_width: 0.125 INCHES NOMINAL IN, peripheral_diameter: 2.875 INCHES NOMINAL IN, center_hole_diameter: 1.188 INCHES NOMINAL IN, cross-sectional_height: 0.625 INCHES NOMINAL IN, cross-sectional_thickness: 0.686 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-113-9703, 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
51852
NSN: 5330-01-113-9703
NIINs: 011139703, 014246685
FSC: 5330 — Packing and Gasket Materials
CAGE: 79218 — WATEROUS COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
rim_surface_width0.125 INCHES NOMINAL IN
peripheral_diameter2.875 INCHES NOMINAL IN
center_hole_diameter1.188 INCHES NOMINAL IN
cross-sectional_height0.625 INCHES NOMINAL IN
cross-sectional_thickness0.686 INCHES NOMINAL IN
cross-sectional_shape_styleFLANGE
flanged_body_outside_diameter1.559 INCHES NOMINAL IN
NSN5330-01-113-9703
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51852 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
•
CROSS-SECTIONAL THICKNESS: 0.686 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.625 INCHES NOMINAL IN
•
RIM SURFACE WIDTH: 0.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
•
FLANGED BODY OUTSIDE DIAMETER: 1.559 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 2.875 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.188 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.686 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.625 INCHES NOMINAL IN
RIM SURFACE WIDTH0.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
FLANGED BODY OUTSIDE DIAMETER1.559 INCHES NOMINAL IN
PERIPHERAL DIAMETER2.875 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.188 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
2WC301Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 51852?
51852 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 51852?
There is 1 known substitute for 51852: 2WC301. Substitute compatibility should be verified for your specific system.
What is the NSN for 51852?
51852 is cataloged in the U.S. Government catalog under NSN 5330-01-113-9703. 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.