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12277028 — RETAINER,SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12277028: RETAINER,SEAL.

The RETAINER,SEAL is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, construction: SOLIDSOLID, overall_height: 0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN, seal_seat_depth: 0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN, flange_thickness: 0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN, style_designator: FLANGEDFLANGED. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-115-0651, 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
12277028
NSN: 5330-01-115-0651
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
constructionSOLIDSOLID
overall_height0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN
seal_seat_depth0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN
flange_thickness0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN
style_designatorFLANGEDFLANGED
aperture_diameter2.873 INCHES MINIMUM AND 2.873 INCHES MINIMUM AND 2.875 INCHES MAXIMUM2.875 INCHES MAXIMUM IN
bolt_hole_diameter0.531 INCHES NOMINAL0.531 INCHES NOMINAL IN
bolt_hole_quantity44
seal_seat_diameter3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
bolt_circle_diameter5.126 INCHES NOMINAL5.126 INCHES NOMINAL IN
body_outside_diameter6.120 INCHES NOMINAL6.120 INCHES NOMINAL IN
NSN5330-01-115-0651
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12277028 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
•
FLANGE THICKNESS: 0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 6.120 INCHES NOMINAL6.120 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLANGEDFLANGED
•
BOLT HOLE DIAMETER: 0.531 INCHES NOMINAL0.531 INCHES NOMINAL IN
•
SEAL SEAT DIAMETER: 3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.873 INCHES MINIMUM AND 2.873 INCHES MINIMUM AND 2.875 INCHES MAXIMUM2.875 INCHES MAXIMUM IN
•
BOLT HOLE QUANTITY: 44
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN
FLANGE THICKNESS0.620 INCHES NOMINAL0.620 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER6.120 INCHES NOMINAL6.120 INCHES NOMINAL IN
STYLE DESIGNATORFLANGEDFLANGED
BOLT HOLE DIAMETER0.531 INCHES NOMINAL0.531 INCHES NOMINAL IN
SEAL SEAT DIAMETER3.500 INCHES NOMINAL3.500 INCHES NOMINAL IN
APERTURE DIAMETER2.873 INCHES MINIMUM AND 2.873 INCHES MINIMUM AND 2.875 INCHES MAXIMUM2.875 INCHES MAXIMUM IN
BOLT HOLE QUANTITY44
BOLT CIRCLE DIAMETER5.126 INCHES NOMINAL5.126 INCHES NOMINAL IN
SHORTEST DISTANCE BETWEEN BODY END AND MOUNTING FLANGE0.260 INCHES NOMINAL0.260 INCHES NOMINAL IN
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 12277028?
12277028 is a RETAINER,SEAL.
What is the NSN for 12277028?
12277028 is cataloged in the U.S. Government catalog under NSN 5330-01-115-0651. 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.