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5349-6939 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5349-6939: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, peripheral_diameter: 4.376 INCHES MINIMUM AND 4.378 INCHES MAXIMUM IN, center_hole_diameter: 3.625 INCHES NOMINAL IN, cross-sectional_height: 0.590 INCHES NOMINAL IN, cross-sectional_thickness: 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN, cross-sectional_shape_style: CUP. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-166-9166, 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
5349-6939
NSN: 5330-00-166-9166
FSC: 5330 — Packing and Gasket Materials
CAGE: 19953 — CEMSCO INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
peripheral_diameter4.376 INCHES MINIMUM AND 4.378 INCHES MAXIMUM IN
center_hole_diameter3.625 INCHES NOMINAL IN
cross-sectional_height0.590 INCHES NOMINAL IN
cross-sectional_thickness0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
cross-sectional_shape_styleCUP
material_document_and_classificationQQ-A-225/8,ALLOY 6061,T6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-166-9166
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5349-6939 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 THICKNESS: 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.590 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8,ALLOY 6061,T6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: CUP
•
PERIPHERAL DIAMETER: 4.376 INCHES MINIMUM AND 4.378 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.625 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.590 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8,ALLOY 6061,T6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLECUP
PERIPHERAL DIAMETER4.376 INCHES MINIMUM AND 4.378 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.625 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 6061 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5349-6939?
5349-6939 is a RETAINER,PACKING.
What is the NSN for 5349-6939?
5349-6939 is cataloged in the U.S. Government catalog under NSN 5330-00-166-9166. 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.