PartsTable
Technical Data Sheet
Download PDF

12938284 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12938284: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include peripheral_diameter: 4.864 INCHES NOMINAL IN, center_hole_diameter: 4.496 INCHES NOMINAL IN, end_item_identification: M119A1 TOWED HOWITZER, cross-sectional_shape_style: CHANNEL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-372-5820, 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
12938284
NSN: 5330-01-372-5820
FSC: 5330 — Packing and Gasket Materials
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
peripheral_diameter4.864 INCHES NOMINAL IN
center_hole_diameter4.496 INCHES NOMINAL IN
end_item_identificationM119A1 TOWED HOWITZER
cross-sectional_shape_styleCHANNEL
NSN5330-01-372-5820
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12938284 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 SHAPE STYLE: CHANNEL
•
PERIPHERAL DIAMETER: 4.864 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 4.496 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLECHANNEL
PERIPHERAL DIAMETER4.864 INCHES NOMINAL IN
CENTER HOLE DIAMETER4.496 INCHES NOMINAL IN
END ITEM IDENTIFICATIONM119A1 TOWED HOWITZER
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
GT RING 7349MT-987-P5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 12938284?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 12938284?
12938284 is a PACKING,PREFORMED.
What parts can replace 12938284?
There is 1 known substitute for 12938284: GT RING 7349MT-987-P5. Substitute compatibility should be verified for your specific system.
What is the NSN for 12938284?
12938284 is cataloged in the U.S. Government catalog under NSN 5330-01-372-5820. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 12938284

✓ 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.