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6494-6428 — PACKING ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6494-6428: PACKING ASSEMBLY.

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.424 INCHES NOMINAL IN, material: PLASTIC POLYAMIDE NYLON BOTTOM RING, temp_rating: -70.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, inside_diameter: 4.870 INCHES MINIMUM AND 4.872 INCHES MAXIMUM IN, outside_diameter: 5.349 INCHES MINIMUM AND 5.351 INCHES MAXIMUM IN, cross-sectional_shape_style: SPECIAL INTERMEDIATE RING. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-117-2417, 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
6494-6428
NSN: 5330-01-117-2417
FSC: 5330 — Packing and Gasket Materials
CAGE: 0KDP7 — KIDDE-FENWAL, LLC (USA)
SPECIFICATIONS
height0.424 INCHES NOMINAL IN
materialPLASTIC POLYAMIDE NYLON BOTTOM RING
temp_rating-70.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
inside_diameter4.870 INCHES MINIMUM AND 4.872 INCHES MAXIMUM IN
outside_diameter5.349 INCHES MINIMUM AND 5.351 INCHES MAXIMUM IN
intermediate_ring_quantity1
cross-sectional_shape_styleSPECIAL INTERMEDIATE RING
material_document_and_classification987 FSCM 72902 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
NSN5330-01-117-2417
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6494-6428 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
•
TEMP RATING: -70.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
INTERMEDIATE RING QUANTITY: 1
•
OUTSIDE DIAMETER: 5.349 INCHES MINIMUM AND 5.351 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 987 FSCM 72902 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR BOTTOM RING
•
INSIDE DIAMETER: 4.870 INCHES MINIMUM AND 4.872 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
TEMP RATING-70.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
INTERMEDIATE RING QUANTITY1
OUTSIDE DIAMETER5.349 INCHES MINIMUM AND 5.351 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION987 FSCM 72902 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR BOTTOM RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR TOP RING
CROSS-SECTIONAL SHAPE STYLESPECIAL INTERMEDIATE RING
INSIDE DIAMETER4.870 INCHES MINIMUM AND 4.872 INCHES MAXIMUM IN
HEIGHT0.424 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR INTERMEDIATE RING
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 5
10119647Reference document
Same NSN cross-reference
Reference document — Informative reference only
N304TA2P428ST05Reference document
Same NSN cross-reference
Reference document — Secondary reference
4182704PT428Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
7428MT987-4780Reference document
Same NSN cross-reference
Reference document — Secondary reference
NM304TA2P428ST05Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6494-6428?
6494-6428 is a PACKING ASSEMBLY.
What parts can replace 6494-6428?
There are 5 known substitutes for 6494-6428: 10119647, N304TA2P428ST05, 4182704PT428 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6494-6428?
6494-6428 is cataloged in the U.S. Government catalog under NSN 5330-01-117-2417. 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.