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Technical Data Sheet
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ADH1658A — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ADH1658A: GASKET.

The GASKET is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-239-3334, 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
ADH1658A
NSN: 5330-01-239-3334
FSC: 5330 — Packing and Gasket Materials
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)
SPECIFICATIONS
Part NumberADH1658A
NSN5330-01-239-3334
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ADH1658A 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
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
16100367Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
A4549A10DH3 PIECE 13Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 ADH1658A?
ADH1658A is a GASKET.
What parts can replace ADH1658A?
There are 2 known substitutes for ADH1658A: 16100367, A4549A10DH3 PIECE 13. Substitute compatibility should be verified for your specific system.
What is the NSN for ADH1658A?
ADH1658A is cataloged in the U.S. Government catalog under NSN 5330-01-239-3334. This indicates validated use in U.S. government and defense supply chains.
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