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GS570AH328 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GS570AH328: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, peripheral_diameter: 2.247 INCHES NOMINAL IN, center_hole_diameter: 1.875 INCHES NOMINAL IN, cross-sectional_height: 0.434 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-040-9430, 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
GS570AH328
NSN: 5330-00-040-9430
FSC: 5330 — Packing and Gasket Materials
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
peripheral_diameter2.247 INCHES NOMINAL IN
center_hole_diameter1.875 INCHES NOMINAL IN
cross-sectional_height0.434 INCHES NOMINAL IN
NSN5330-00-040-9430
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GS570AH328 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 HEIGHT: 0.434 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 2.247 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.875 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.434 INCHES NOMINAL IN
PERIPHERAL DIAMETER2.247 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.875 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
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 1
S12561-328-5Reference 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 GS570AH328?
GS570AH328 is a RETAINER,PACKING.
What parts can replace GS570AH328?
There is 1 known substitute for GS570AH328: S12561-328-5. Substitute compatibility should be verified for your specific system.
What is the NSN for GS570AH328?
GS570AH328 is cataloged in the U.S. Government catalog under NSN 5330-00-040-9430. 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.