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14A251-11 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

14A251-11: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include attachment_method: ROUND HOLE, peripheral_diameter: 4.780 INCHES NOMINAL IN, center_hole_diameter: 4.000 INCHES NOMINAL IN, cross-sectional_height: 1.180 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN, attachment_hole_diameter: 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN, attachment_feature_quantity: 16. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-144-9975, 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
14A251-11
NSN: 5330-01-144-9975
FSC: 5330 — Packing and Gasket Materials
CAGE: 14711 — RSA ENGINEERED PRODUCTS, LLC DBA RSA ENGINEERED PRODUCTS LLC (USA)
SPECIFICATIONS
attachment_methodROUND HOLE
peripheral_diameter4.780 INCHES NOMINAL IN
center_hole_diameter4.000 INCHES NOMINAL IN
cross-sectional_height1.180 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN
attachment_hole_diameter0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
attachment_feature_quantity16
attachment_feature_circle_diameter5.700 INCHES NOMINAL SINGLE CIRCLE IN
NSN5330-01-144-9975
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 14A251-11 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: 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
•
ATTACHMENT FEATURE QUANTITY: 16
•
CROSS-SECTIONAL HEIGHT: 1.180 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 5.700 INCHES NOMINAL SINGLE CIRCLE IN
•
PERIPHERAL DIAMETER: 4.780 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 4.000 INCHES NOMINAL IN
•
ATTACHMENT METHOD: ROUND HOLE
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
ATTACHMENT FEATURE QUANTITY16
CROSS-SECTIONAL HEIGHT1.180 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN
ATTACHMENT FEATURE CIRCLE DIAMETER5.700 INCHES NOMINAL SINGLE CIRCLE IN
PERIPHERAL DIAMETER4.780 INCHES NOMINAL IN
CENTER HOLE DIAMETER4.000 INCHES NOMINAL IN
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 1
458-50018-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 14A251-11?
14A251-11 is a RETAINER,PACKING.
What parts can replace 14A251-11?
There is 1 known substitute for 14A251-11: 458-50018-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 14A251-11?
14A251-11 is cataloged in the U.S. Government catalog under NSN 5330-01-144-9975. 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.