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655B0291B485A — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

655B0291B485A: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, attachment_method: ROUND HOLE, center_hole_diameter: 1.688 INCHES NOMINAL IN, cross-sectional_height: 1.250 INCHES NOMINAL IN, attachment_hole_diameter: 0.438 INCHES NOMINAL IN, material_document_and_classification: ASTM A743,GRADE CA-6NM ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-185-3530, 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
655B0291B485A
NSN: 5330-01-185-3530
FSC: 5330 — Packing and Gasket Materials
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
attachment_methodROUND HOLE
center_hole_diameter1.688 INCHES NOMINAL IN
cross-sectional_height1.250 INCHES NOMINAL IN
attachment_hole_diameter0.438 INCHES NOMINAL IN
attachment_feature_quantity1
material_document_and_classificationASTM A743,GRADE CA-6NM ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-185-3530
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 655B0291B485A 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: 0.438 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 1
•
CROSS-SECTIONAL HEIGHT: 1.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A743,GRADE CA-6NM ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE DIAMETER: 1.688 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
ATTACHMENT METHOD: ROUND HOLE
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.438 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY1
CROSS-SECTIONAL HEIGHT1.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A743,GRADE CA-6NM ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER1.688 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
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 655B0291B485A?
655B0291B485A is a RETAINER,PACKING.
What is the NSN for 655B0291B485A?
655B0291B485A is cataloged in the U.S. Government catalog under NSN 5330-01-185-3530. 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.