PartsTable
Technical Data Sheet
Download PDF

JC1804 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

JC1804: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL, overall_height: 0.562 INCHES NOMINAL IN, flange_diameter: 0.812 INCHES NOMINAL IN, flange_thickness: 0.094 INCHES NOMINAL IN, style_designator: IRREGULAR, body_inside_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-271-0401, 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
JC1804
NSN: 5340-01-271-0401
FSC: 5340 — Hardware, Commercial
CAGE: 2Y614 — LINK-BELT CRANES, L.P., LLLP (USA)
SPECIFICATIONS
materialSTEEL
overall_height0.562 INCHES NOMINAL IN
flange_diameter0.812 INCHES NOMINAL IN
flange_thickness0.094 INCHES NOMINAL IN
style_designatorIRREGULAR
body_inside_diameter0.312 INCHES NOMINAL IN
body_outside_diameter0.500 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationLB1117, LINK-BELT SPEEDER CORPORATION MFR REF SINGLE MATERIAL RESPONSE
NSN5340-01-271-0401
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: JC1804 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: 0.812 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.094 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: IRREGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: LB1117, LINK-BELT SPEEDER CORPORATION MFR REF SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.812 INCHES NOMINAL IN
OVERALL HEIGHT0.562 INCHES NOMINAL IN
FLANGE THICKNESS0.094 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
STYLE DESIGNATORIRREGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONLB1117, LINK-BELT SPEEDER CORPORATION MFR REF SINGLE MATERIAL RESPONSE
BODY INSIDE DIAMETER0.312 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALSTEEL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy JC1804?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is JC1804?
JC1804 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for JC1804?
JC1804 is cataloged in the U.S. Government catalog under NSN 5340-01-271-0401. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — JC1804

✓ 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.