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203190B — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

203190B: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, joint_type: LOCK RETAINER, attachment_method: ROUND HOLE, peripheral_diameter: 7.000 INCHES NOMINAL IN, center_hole_diameter: 6.750 INCHES NOMINAL IN, cross-sectional_height: 0.098 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-899-2572, 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
203190B
NSN: 5330-00-899-2572
FSC: 5330 — Packing and Gasket Materials
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialIRON OVERALL
joint_typeLOCK RETAINER
attachment_methodROUND HOLE
peripheral_diameter7.000 INCHES NOMINAL IN
center_hole_diameter6.750 INCHES NOMINAL IN
cross-sectional_height0.098 INCHES NOMINAL IN
attachment_hole_diameter0.043 INCHES MAXIMUM IN
attachment_feature_quantity6
cross-sectional_shape_styleSQUARE/RECTANGULAR
attachment_feature_circle_diameter6.875 INCHES NOMINAL RETAINER IN
NSN5330-00-899-2572
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 203190B 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: 0.043 INCHES MAXIMUM IN
•
ATTACHMENT FEATURE QUANTITY: 6
•
CROSS-SECTIONAL HEIGHT: 0.098 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 6.875 INCHES NOMINAL RETAINER IN
•
PERIPHERAL DIAMETER: 7.000 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 6.750 INCHES NOMINAL IN
•
MATERIAL: IRON OVERALL
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.043 INCHES MAXIMUM IN
ATTACHMENT FEATURE QUANTITY6
CROSS-SECTIONAL HEIGHT0.098 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
ATTACHMENT FEATURE CIRCLE DIAMETER6.875 INCHES NOMINAL RETAINER IN
PERIPHERAL DIAMETER7.000 INCHES NOMINAL IN
CENTER HOLE DIAMETER6.750 INCHES NOMINAL IN
MATERIALIRON OVERALL
JOINT TYPELOCK RETAINER
ATTACHMENT METHODROUND HOLE
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 203190B?
203190B is a RETAINER,PACKING.
What is the NSN for 203190B?
203190B is cataloged in the U.S. Government catalog under NSN 5330-00-899-2572. 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.