PartsTable
Technical Data Sheet
Download PDF

5124551 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5124551: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.5750 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN, bore_diameter: 0.4360 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN, overall_height: 0.3800 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-150-2339, 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
5124551
NSN: 5340-00-150-2339
FSC: 5340 — Hardware, Commercial
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.5750 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN
bore_diameter0.4360 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM IN
overall_height0.3800 INCHES NOMINAL IN
style_designatorSEAT
surface_treatmentCADMIUM
first_step_diameter0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
countersink_diameter0.4700 INCHES NOMINAL IN
countersink_angle_in_deg15.0
distance_from_end_to_first_step0.2900 INCHES NOMINAL IN
NSN5340-00-150-2339
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5124551 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
•
COUNTERSINK ANGLE IN DEG: 15.0
•
FIRST STEP DIAMETER: 0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
•
END DIAMETER: 0.5750 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN
•
COUNTERSINK DIAMETER: 0.4700 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.2900 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.3800 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG15.0
FIRST STEP DIAMETER0.8730 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
END DIAMETER0.5750 INCHES MINIMUM AND 0.5850 INCHES MAXIMUM IN
COUNTERSINK DIAMETER0.4700 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.2900 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
SURFACE TREATMENTCADMIUM
BORE DIAMETER0.4360 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM 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: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 5124551?
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 5124551?
5124551 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 5124551?
5124551 is cataloged in the U.S. Government catalog under NSN 5340-00-150-2339. 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 — 5124551

✓ 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.