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8659257P030 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8659257P030: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include height: 0.375 INCHES NOMINAL IN, material: STEEL, outside_diameter: 0.720 INCHES NOMINAL IN, style_designator: CUP, material_thickness: 0.046875 INCHES NOMINAL IN, material_document_and_classification: AMS 5022 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-598-5544, 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
8659257P030
NSN: 5340-00-598-5544
FSC: 5340 — Hardware, Commercial
CAGE: 51226 — ASSOCIATED AEROSPACE ACTIVITIES INC (USA)
SPECIFICATIONS
height0.375 INCHES NOMINAL IN
materialSTEEL
outside_diameter0.720 INCHES NOMINAL IN
style_designatorCUP
material_thickness0.046875 INCHES NOMINAL IN
material_document_and_classificationAMS 5022 ASSN STD SINGLE MATERIAL RESPONSE
NSN5340-00-598-5544
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8659257P030 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
•
OUTSIDE DIAMETER: 0.720 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CUP
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5022 ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL THICKNESS: 0.046875 INCHES NOMINAL IN
•
HEIGHT: 0.375 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.720 INCHES NOMINAL IN
STYLE DESIGNATORCUP
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5022 ASSN STD SINGLE MATERIAL RESPONSE
MATERIAL THICKNESS0.046875 INCHES NOMINAL IN
HEIGHT0.375 INCHES NOMINAL IN
MATERIALSTEEL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8659257P030?
8659257P030 is a PLUG,EXPANSION.
What is the NSN for 8659257P030?
8659257P030 is cataloged in the U.S. Government catalog under NSN 5340-00-598-5544. 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.