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P211586 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

P211586: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 1315, design_type: SOLID, end_diameter: 0.9690 INCHES NOMINAL IN, bore_diameter: 0.6870 INCHES NOMINAL IN, overall_height: 0.4840 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-414-9122, 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
P211586
NSN: 5340-00-414-9122
FSC: 5340 — Hardware, Commercial
CAGE: 17572 — STERLING ENGINE CO INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1315
design_typeSOLID
end_diameter0.9690 INCHES NOMINAL IN
bore_diameter0.6870 INCHES NOMINAL IN
overall_height0.4840 INCHES NOMINAL IN
style_designatorSEAT
bore_taper_in_deg14.0
first_step_length0.1250 INCHES NOMINAL IN
first_step_diameter1.5000 INCHES NOMINAL IN
chamfer_angle_in_deg45.0
second_step_diameter1.8750 INCHES NOMINAL IN
spherical_seat_top_radius0.3100 INCHES NOMINAL IN
NSN5340-00-414-9122
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: P211586 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: 1.5000 INCHES NOMINAL IN
•
END DIAMETER: 0.9690 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.1090 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1315 ASSN STD SINGLE MATERIAL RESPONSE
•
SECOND STEP DIAMETER: 1.8750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4840 INCHES NOMINAL IN
FIRST STEP DIAMETER1.5000 INCHES NOMINAL IN
END DIAMETER0.9690 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.1090 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1315 ASSN STD SINGLE MATERIAL RESPONSE
SECOND STEP DIAMETER1.8750 INCHES NOMINAL IN
BORE TAPER IN DEG14.0
FIRST STEP LENGTH0.1250 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 2
NP11155PC5016Reference document
Same NSN cross-reference
Reference document — Secondary reference
NP11158PC6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is P211586?
P211586 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace P211586?
There are 2 known substitutes for P211586: NP11155PC5016, NP11158PC6. Substitute compatibility should be verified for your specific system.
What is the NSN for P211586?
P211586 is cataloged in the U.S. Government catalog under NSN 5340-00-414-9122. 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.