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5209525 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5209525: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL COMP 4130, overall_height: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN, style_designator: IRREGULAR, surface_treatment: PHOSPHATE MANGANESE, body_inside_diameter: 0.505 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, body_outside_diameter: 1.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-317-4159, 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
5209525
NSN: 5340-01-317-4159
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
overall_height0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
style_designatorIRREGULAR
surface_treatmentPHOSPHATE MANGANESE
body_inside_diameter0.505 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
body_outside_diameter1.500 INCHES NOMINAL IN
mounting_hole_diameter0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
material_document_and_classificationAISI 4130 ASSN STD SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationDOD-P-16232,TY M. CL 3 DEF STAN/SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-317-4159
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5209525 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
•
MATERIAL HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232,TY M. CL 3 DEF STAN/SPEC SINGLE TREATMENT RESPONSE
•
BODY OUTSIDE DIAMETER: 1.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: IRREGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 4130 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 0.505 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232,TY M. CL 3 DEF STAN/SPEC SINGLE TREATMENT RESPONSE
BODY OUTSIDE DIAMETER1.500 INCHES NOMINAL IN
STYLE DESIGNATORIRREGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 4130 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.156 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.505 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SURFACE TREATMENTPHOSPHATE MANGANESE
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 5209525?
5209525 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for 5209525?
5209525 is cataloged in the U.S. Government catalog under NSN 5340-01-317-4159. 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.