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204764-1 — RETAINER,SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

204764-1: RETAINER,SEAL.

The RETAINER,SEAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN, seal_seat_depth: 3.400 INCHES MINIMUM AND 3.420 INCHES MAXIMUM IN, flange_thickness: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN, special_features: 4 OTHER BOLT HOLES WIGH DIA OF 0.277 IN. MIN AND 0.287 IN.

MAX IN, style_designator: FLANGED. This part is cataloged in the U.S. Government catalog under NSN 5330-00-404-3354, 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
204764-1
NSN: 5330-00-404-3354
FSC: 5330 — Packing and Gasket Materials
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
seal_seat_depth3.400 INCHES MINIMUM AND 3.420 INCHES MAXIMUM IN
flange_thickness0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
special_features4 OTHER BOLT HOLES WIGH DIA OF 0.277 IN. MIN AND 0.287 IN. MAX IN
style_designatorFLANGED
aperture_diameter2.703 INCHES MINIMUM AND 2.705 INCHES MAXIMUM IN
bolt_hole_diameter0.201 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
bolt_hole_quantity4
seal_seat_diameter3.560 INCHES MINIMUM AND 3.570 INCHES MAXIMUM IN
bolt_circle_diameter4.124 INCHES NOMINAL IN
end_item_identificationAH-1 SERIES HELICOPTERS
NSN5330-00-404-3354
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 204764-1 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
•
FLANGE THICKNESS: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FLANGED
•
BOLT HOLE DIAMETER: 0.201 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
•
SEAL SEAT DIAMETER: 3.560 INCHES MINIMUM AND 3.570 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 2.703 INCHES MINIMUM AND 2.705 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 4
•
BOLT CIRCLE DIAMETER: 4.124 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
FLANGE THICKNESS0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
STYLE DESIGNATORFLANGED
BOLT HOLE DIAMETER0.201 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
SEAL SEAT DIAMETER3.560 INCHES MINIMUM AND 3.570 INCHES MAXIMUM IN
APERTURE DIAMETER2.703 INCHES MINIMUM AND 2.705 INCHES MAXIMUM IN
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER4.124 INCHES NOMINAL IN
SPECIAL FEATURES4 OTHER BOLT HOLES WIGH DIA OF 0.277 IN. MIN AND 0.287 IN. MAX IN
END ITEM IDENTIFICATIONAH-1 SERIES HELICOPTERS
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

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 204764-1?
204764-1 is a RETAINER,SEAL.
What is the NSN for 204764-1?
204764-1 is cataloged in the U.S. Government catalog under NSN 5330-00-404-3354. 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.