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BSP3503 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BSP3503: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 45.0 DEGREES NOMINAL, material: STEEL OVERALL, rim_surface_width: 0.375 INCHES NOMINAL IN, peripheral_diameter: 1.438 INCHES NOMINAL IN, center_hole_diameter: 0.5000 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN, cross-sectional_height: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-692-9439, 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
BSP3503
NSN: 5330-00-692-9439
FSC: 5330 — Packing and Gasket Materials
CAGE: 24403 — ITT ENIDINE INC. DBA ITT ENIDINE INC (USA)
SPECIFICATIONS
angle45.0 DEGREES NOMINAL
materialSTEEL OVERALL
rim_surface_width0.375 INCHES NOMINAL IN
peripheral_diameter1.438 INCHES NOMINAL IN
center_hole_diameter0.5000 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
cross-sectional_height0.438 INCHES NOMINAL IN
NSN5330-00-692-9439
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BSP3503 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 HEIGHT: 0.438 INCHES NOMINAL IN
•
RIM SURFACE WIDTH: 0.375 INCHES NOMINAL IN
•
ANGLE: 45.0 DEGREES NOMINAL
•
PERIPHERAL DIAMETER: 1.438 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.5000 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.438 INCHES NOMINAL IN
RIM SURFACE WIDTH0.375 INCHES NOMINAL IN
ANGLE45.0 DEGREES NOMINAL
PERIPHERAL DIAMETER1.438 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.5000 INCHES MINIMUM AND 0.5005 INCHES MAXIMUM IN
MATERIALSTEEL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BSP3503?
BSP3503 is a RETAINER,PACKING.
What is the NSN for BSP3503?
BSP3503 is cataloged in the U.S. Government catalog under NSN 5330-00-692-9439. 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.