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55-22009-55 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

55-22009-55: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 903 OVERALL, special_features: TWO HOLES 0.937 IN. DIA INVERTED RADIUS LOCATED ON OUTSIDE DIAMETER IN, attachment_method: ROUND HOLE, rim_surface_width: 0.250 INCHES NOMINAL IN, peripheral_diameter: 4.000 INCHES NOMINAL IN, center_hole_diameter: 2.312 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5330-01-122-4192, 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
55-22009-55
NSN: 5330-01-122-4192
FSC: 5330 — Packing and Gasket Materials
CAGE: 52081 — EURAMCO SAFETY INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 903 OVERALL
special_featuresTWO HOLES 0.937 IN. DIA INVERTED RADIUS LOCATED ON OUTSIDE DIAMETER IN
attachment_methodROUND HOLE
rim_surface_width0.250 INCHES NOMINAL IN
peripheral_diameter4.000 INCHES NOMINAL IN
center_hole_diameter2.312 INCHES NOMINAL IN
cross-sectional_height0.500 INCHES NOMINAL IN
attachment_hole_diameter0.266 INCHES NOMINAL IN
cross-sectional_thickness0.217 INCHES NOMINAL IN
attachment_feature_quantity2
cross-sectional_shape_styleFLANGE
attachment_feature_circle_diameter3.500 INCHES NOMINAL SINGLE CIRCLE IN
NSN5330-01-122-4192
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55-22009-55 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
•
ATTACHMENT HOLE DIAMETER: 0.266 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 2
•
CROSS-SECTIONAL THICKNESS: 0.217 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,TY 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
RIM SURFACE WIDTH: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 3.500 INCHES NOMINAL SINGLE CIRCLE IN
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.266 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY2
CROSS-SECTIONAL THICKNESS0.217 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,TY 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
RIM SURFACE WIDTH0.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
ATTACHMENT FEATURE CIRCLE DIAMETER3.500 INCHES NOMINAL SINGLE CIRCLE IN
PERIPHERAL DIAMETER4.000 INCHES NOMINAL IN
SPECIAL FEATURESTWO HOLES 0.937 IN. DIA INVERTED RADIUS LOCATED ON OUTSIDE DIAMETER IN
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 55-22009-55?
55-22009-55 is a RETAINER,PACKING.
What is the NSN for 55-22009-55?
55-22009-55 is cataloged in the U.S. Government catalog under NSN 5330-01-122-4192. 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.