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G77-4T — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

G77-4T: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include cross-sectional_shape_style: SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-249-4212, 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
G77-4T
NSN: 5330-01-249-4212
FSC: 5330 — Packing and Gasket Materials
CAGE: 22638 — ATAP INC (USA)
SPECIFICATIONS
cross-sectional_shape_styleSPECIAL
NSN5330-01-249-4212
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G77-4T 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
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLESPECIAL
SUBSTITUTES & CROSS-REFERENCES 2
FIG.7000-4 IN. GASKETReference document
Same NSN cross-reference
Reference document — Design control — primary reference
039007920-0Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is G77-4T?
G77-4T is a PACKING,PREFORMED.
What parts can replace G77-4T?
There are 2 known substitutes for G77-4T: FIG.7000-4 IN. GASKET, 039007920-0. Substitute compatibility should be verified for your specific system.
What is the NSN for G77-4T?
G77-4T is cataloged in the U.S. Government catalog under NSN 5330-01-249-4212. This indicates validated use in U.S. government and defense supply chains.
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