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27228351 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

27228351: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL COMP 630, design_type: SOLID, end_diameter: 0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN, bore_diameter: 0.0920 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN, overall_height: 0.4100 INCHES MINIMUM AND 0.4170 INCHES MAXIMUM IN, first_step_length: 0.0620 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-223-3258, 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
27228351
NSN: 5340-01-223-3258
FSC: 5340 — Hardware, Commercial
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 630
design_typeSOLID
end_diameter0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN
bore_diameter0.0920 INCHES MINIMUM AND 0.0960 INCHES MAXIMUM IN
overall_height0.4100 INCHES MINIMUM AND 0.4170 INCHES MAXIMUM IN
first_step_length0.0620 INCHES NOMINAL IN
surface_treatmentPASSIVATE
first_step_diameter0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN
second_step_diameter0.4950 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
distance_from_end_to_first_step0.1920 INCHES MINIMUM AND 0.1950 INCHES MAXIMUM IN
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-223-3258
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 27228351 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: 0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN
•
END DIAMETER: 0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
•
DISTANCE FROM END TO FIRST STEP: 0.1920 INCHES MINIMUM AND 0.1950 INCHES MAXIMUM IN
•
DESIGN TYPE: SOLID
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
•
SECOND STEP DIAMETER: 0.4950 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.4100 INCHES MINIMUM AND 0.4170 INCHES MAXIMUM IN
FIRST STEP DIAMETER0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN
END DIAMETER0.3133 INCHES MINIMUM AND 0.3137 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE
DISTANCE FROM END TO FIRST STEP0.1920 INCHES MINIMUM AND 0.1950 INCHES MAXIMUM IN
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE
SECOND STEP DIAMETER0.4950 INCHES MINIMUM AND 0.4990 INCHES MAXIMUM IN
FIRST STEP LENGTH0.0620 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
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
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FREQUENTLY ASKED QUESTIONS
What is 27228351?
27228351 is a SEAT,HELICAL COMPRESSION SPRING.
What is the NSN for 27228351?
27228351 is cataloged in the U.S. Government catalog under NSN 5340-01-223-3258. 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.