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7982778 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7982778: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL, construction: SOLID, aperture_width: 4.000 INCHES NOMINAL IN, aperture_length: 7.375 INCHES NOMINAL IN, inside_corner_radius: 0.688 INCHES NOMINAL IN, cross-sectional_width: 0.594 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-039-8549, 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
7982778
NSN: 5330-00-039-8549
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
constructionSOLID
aperture_width4.000 INCHES NOMINAL IN
aperture_length7.375 INCHES NOMINAL IN
inside_corner_radius0.688 INCHES NOMINAL IN
cross-sectional_width0.594 INCHES NOMINAL IN
outside_corner_radius1.125 INCHES NOMINAL IN
cross-sectional_height0.438 INCHES NOMINAL IN
material_document_and_classification417,GR RS 515,A,B,C1,F1 MIL STD ALL MATERIAL RESPONSES OVERALL A
NSN5330-00-039-8549
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7982778 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
•
INSIDE CORNER RADIUS: 0.688 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 0.594 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 417,GR RS 515,A,B,C1,F1 MIL STD ALL MATERIAL RESPONSES OVERALL A
•
APERTURE WIDTH: 4.000 INCHES NOMINAL IN
•
APERTURE LENGTH: 7.375 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 1.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.438 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.688 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH0.594 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION417,GR RS 515,A,B,C1,F1 MIL STD ALL MATERIAL RESPONSES OVERALL A
APERTURE WIDTH4.000 INCHES NOMINAL IN
APERTURE LENGTH7.375 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS1.125 INCHES NOMINAL IN
MATERIALRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
CONSTRUCTIONSOLID
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 7982778?
7982778 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for 7982778?
7982778 is cataloged in the U.S. Government catalog under NSN 5330-00-039-8549. This indicates validated use in U.S. government and defense supply chains.
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