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18968H — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

18968H: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL COMP 1009, overall_height: 0.375 INCHES NOMINAL IN, flange_diameter: 0.620 INCHES NOMINAL IN, flange_thickness: 0.016 INCHES NOMINAL IN, style_designator: PARALLEL, surface_treatment: TIN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-359-0808, 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
18968H
NSN: 5340-00-359-0808
FSC: 5340 — Hardware, Commercial
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1009
overall_height0.375 INCHES NOMINAL IN
flange_diameter0.620 INCHES NOMINAL IN
flange_thickness0.016 INCHES NOMINAL IN
style_designatorPARALLEL
surface_treatmentTIN
body_inside_diameter0.320 INCHES NOMINAL IN
body_outside_diameter0.352 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
outside_chamfer_angle_in_deg48.0
material_document_and_classificationSAE 1009 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-359-0808
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 18968H 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
•
FLANGE DIAMETER: 0.620 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.016 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.352 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1009 ASSN STD SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 0.320 INCHES NOMINAL IN
•
OUTSIDE CHAMFER ANGLE IN DEG: 48.0
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.620 INCHES NOMINAL IN
OVERALL HEIGHT0.375 INCHES NOMINAL IN
FLANGE THICKNESS0.016 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.352 INCHES NOMINAL IN
STYLE DESIGNATORPARALLEL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1009 ASSN STD SINGLE MATERIAL RESPONSE
BODY INSIDE DIAMETER0.320 INCHES NOMINAL IN
OUTSIDE CHAMFER ANGLE IN DEG48.0
CASEHARDENING INDICATORNOT CASEHARDENED
SURFACE TREATMENTTIN
SUBSTITUTES & CROSS-REFERENCES 5
47527Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2208744Reference document
Same NSN cross-reference
Reference document — Secondary reference
55199R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
10A6139Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
373875Reference 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 18968H?
18968H is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 18968H?
There are 5 known substitutes for 18968H: 47527, 2208744, 55199R1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18968H?
18968H is cataloged in the U.S. Government catalog under NSN 5340-00-359-0808. 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.