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PK665 — GASKET SET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

PK665: GASKET SET.

The GASKET SET is a the manufacturer industrial component. Key specifications include nonsupply_items_and_quantities: 04720 27938 O RING 1,04720 27939 BACK-UP RING 1,04720 27940 O RING 1,04720 27941 BACK-UP RING 1,04720 28407 O RING 1. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-166-5428, 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
PK665
NSN: 5330-01-166-5428
NIINs: 011665428, 012237069
FSC: 5330 — Packing and Gasket Materials
CAGE: 23233 — JAY-EM AEROSPACE CORPORATION (USA)
SPECIFICATIONS
component_quantity5
nonsupply_items_and_quantities04720 27938 O RING 1,04720 27939 BACK-UP RING 1,04720 27940 O RING 1,04720 27941 BACK-UP RING 1,04720 28407 O RING 1
NSN5330-01-166-5428
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PK665 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
•
COMPONENT QUANTITY: 5
•
NONSUPPLY ITEMS AND QUANTITIES: 04720 27938 O RING 1,04720 27939 BACK-UP RING 1,04720 27940 O RING 1,04720 27941 BACK-UP RING 1,04720 28407 O RING 1
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY5
NONSUPPLY ITEMS AND QUANTITIES04720 27938 O RING 1,04720 27939 BACK-UP RING 1,04720 27940 O RING 1,04720 27941 BACK-UP RING 1,04720 28407 O RING 1
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 PK665?
PK665 is a GASKET SET.
What is the NSN for PK665?
PK665 is cataloged in the U.S. Government catalog under NSN 5330-01-166-5428. 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.