PartsTable
Technical Data Sheet
Download PDF

18T8438C1 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

18T8438C1: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include design_type: SOLID, end_diameter: 1.6875 INCHES NOMINAL IN, bore_diameter: 0.6875 INCHES NOMINAL IN, overall_height: 0.8750 INCHES NOMINAL IN, first_step_diameter: 2.8750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-169-0222, 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
18T8438C1
NSN: 5340-01-169-0222
FSC: 5340 — Hardware, Commercial
CAGE: 27315 — MORRIS MATERIAL HANDLING, INC. (USA)
SPECIFICATIONS
design_typeSOLID
end_diameter1.6875 INCHES NOMINAL IN
bore_diameter0.6875 INCHES NOMINAL IN
overall_height0.8750 INCHES NOMINAL IN
first_step_diameter2.8750 INCHES NOMINAL IN
NSN5340-01-169-0222
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 18T8438C1 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
•
FIRST STEP DIAMETER: 2.8750 INCHES NOMINAL IN
•
END DIAMETER: 1.6875 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
BORE DIAMETER: 0.6875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.8750 INCHES NOMINAL IN
FIRST STEP DIAMETER2.8750 INCHES NOMINAL IN
END DIAMETER1.6875 INCHES NOMINAL IN
DESIGN TYPESOLID
BORE DIAMETER0.6875 INCHES NOMINAL IN
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: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy 18T8438C1?
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 18T8438C1?
18T8438C1 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 18T8438C1?
18T8438C1 is cataloged in the U.S. Government catalog under NSN 5340-01-169-0222. 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 — 18T8438C1