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7986748 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7986748: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, peripheral_diameter: 2.805 INCHES NOMINAL IN, center_hole_diameter: 2.501 INCHES NOMINAL IN, cross-sectional_height: 0.167 INCHES NOMINAL IN, end_item_identification: M551, cross-sectional_shape_style: CHANNEL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-945-3947, 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
7986748
NSN: 5330-00-945-3947
FSC: 5330 — Packing and Gasket Materials
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
peripheral_diameter2.805 INCHES NOMINAL IN
center_hole_diameter2.501 INCHES NOMINAL IN
cross-sectional_height0.167 INCHES NOMINAL IN
end_item_identificationM551
cross-sectional_shape_styleCHANNEL
NSN5330-00-945-3947
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7986748 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: 0.167 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: CHANNEL
•
PERIPHERAL DIAMETER: 2.805 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 2.501 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.167 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECHANNEL
PERIPHERAL DIAMETER2.805 INCHES NOMINAL IN
CENTER HOLE DIAMETER2.501 INCHES NOMINAL IN
END ITEM IDENTIFICATIONM551
MATERIALSTEEL CORROSION RESISTING 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7986748?
7986748 is a RETAINER,PACKING.
What is the NSN for 7986748?
7986748 is cataloged in the U.S. Government catalog under NSN 5330-00-945-3947. 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.