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25004000-562B — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

25004000-562B: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SPREADER, seal_width: 0.250 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 4.500 INCHES MINIMUM AND 4.503 INCHES MAXIMUM IN, accommodated_shaft_diameter: 4.498 INCHES MINIMUM AND 4.499 INCHES MAXIMUM IN, cross-sectional_shape_style: SINGLE LIP. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-119-8498, 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
25004000-562B
NSN: 5330-00-119-8498
NIINs: 001198498, 012134202
FSC: 5330 — Packing and Gasket Materials
CAGE: 30781 — PARKER-HANNIFIN CORPORATION DIV ENGINEERED POLYMER SYSTEMS DIVISION (EPS) (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SPREADER
seal_width0.250 INCHES NOMINAL IN
constructionSOLID
housing_bore_diameter4.500 INCHES MINIMUM AND 4.503 INCHES MAXIMUM IN
accommodated_shaft_diameter4.498 INCHES MINIMUM AND 4.499 INCHES MAXIMUM IN
cross-sectional_shape_styleSINGLE LIP
NSN5330-00-119-8498
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 25004000-562B 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: 0.562 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: U
•
PERIPHERAL DIAMETER: 4.500 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 4.000 INCHES NOMINAL IN
•
MATERIAL: PLASTIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.562 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEU
PERIPHERAL DIAMETER4.500 INCHES NOMINAL IN
CENTER HOLE DIAMETER4.000 INCHES NOMINAL IN
MATERIALPLASTIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
5424209-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
461525004000562BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
08-303-028Reference 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
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FREQUENTLY ASKED QUESTIONS
What is 25004000-562B?
25004000-562B is a PACKING,PREFORMED.
What parts can replace 25004000-562B?
There are 3 known substitutes for 25004000-562B: 5424209-3, 461525004000562B, 08-303-028. Substitute compatibility should be verified for your specific system.
What is the NSN for 25004000-562B?
25004000-562B is cataloged in the U.S. Government catalog under NSN 5330-00-119-8498. 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.