PartsTable
Technical Data Sheet
Download PDF

318748 — SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

318748: SPRING.

The SPRING is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.052 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.156 INCHES NOMINAL IN, thread_length: 0.203 INCHES MINIMUM IN, screw_material: STEEL COMP 303. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-385-2023, 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
318748
NSN: 5340-00-385-2023
NIINs: 003852023, 006806294
FSC: 5340 — Hardware, Commercial
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.052 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.156 INCHES NOMINAL IN
thread_length0.203 INCHES MINIMUM IN
screw_materialSTEEL COMP 303
fastener_length0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.099 INCHES IN
screw_surface_treatmentPASSIVATE
thread_quantity_per_inch56
NSN5340-00-385-2023
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 318748 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 318748?
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 318748?
318748 is a SPRING.
What is the NSN for 318748?
318748 is cataloged in the U.S. Government catalog under NSN 5340-00-385-2023. 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 — 318748