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244657 — SPRING,HELICAL,COMPRESSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

244657: SPRING,HELICAL,COMPRESSION.

The SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, end_style: SPRING END,SQUARED BOTH ENDS, coil_quantity: 10, inside_diameter: 0.180 INCHES NOMINAL IN, style_designator: CYLINDRICAL, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-296-2821, 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
244657
NSN: 5330-00-296-2821
NIINs: 002962821, 009083152
FSC: 5330 — Packing and Gasket Materials
CAGE: 87708 — COOPER INDUSTRIES INC FLOW CONTROL DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
end_styleSPRING END,SQUARED BOTH ENDS
coil_quantity10
inside_diameter0.180 INCHES NOMINAL IN
style_designatorCYLINDRICAL
surface_treatmentPASSIVATE OVERALL
spring_free_length0.250 INCHES NOMINAL IN
spring_solid_length0.080 INCHES NOMINAL IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_free_outside_diameter0.196 INCHES NOMINAL IN
material_document_and_classificationFED STD 66,AISI/SAE FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-296-2821
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 244657 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
SUBSTITUTES & CROSS-REFERENCES 5
81473-512Reference document
Same NSN cross-reference
Reference document — Secondary reference
81474-512Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
RS-9477 PIECE 9Reference document
Same NSN cross-reference
Reference document — Secondary reference
B081473Reference document
Same NSN cross-reference
Reference document — Secondary reference
81473Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 244657?
244657 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 244657?
There are 5 known substitutes for 244657: 81473-512, 81474-512, RS-9477 PIECE 9 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 244657?
244657 is cataloged in the U.S. Government catalog under NSN 5330-00-296-2821. 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.