PartsTable
Technical Data Sheet
Download PDF

4W-33551-25 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4W-33551-25: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC AND COTTON OVERALL, hole_diameter: 0.688 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 18.000 INCHES NOMINAL IN, special_features: INNER EDGE OF GASKET IS TO BE CUT TO ALLOW FOR A 90 DEGREE BEND AT DIAMETER TO FORM FLANGED BODY, style_designator: CIRCULAR, aperture_diameter: 13.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-476-7841, 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
4W-33551-25
NSN: 5330-01-476-7841
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER SYNTHETIC AND COTTON OVERALL
hole_diameter0.688 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter18.000 INCHES NOMINAL IN
special_featuresINNER EDGE OF GASKET IS TO BE CUT TO ALLOW FOR A 90 DEGREE BEND AT DIAMETER TO FORM FLANGED BODY
style_designatorCIRCULAR
aperture_diameter13.250 INCHES NOMINAL IN
bolt_hole_quantity8
bolt_circle_diameter16.000 INCHES NOMINAL IN
end_item_identificationVANE AXIAL FAN SIZE A30A
cross-sectional_thickness0.062 INCHES NOMINAL IN
material_document_and_classificationFABREEKA, 3 PLY MFR REF ALL MATERIAL RESPONSES OVERALL
NSN5330-01-476-7841
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4W-33551-25 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 THICKNESS: 0.062 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: FABREEKA, 3 PLY MFR REF ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 18.000 INCHES NOMINAL IN
•
APERTURE DIAMETER: 13.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 8
•
BOLT CIRCLE DIAMETER: 16.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONFABREEKA, 3 PLY MFR REF ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER18.000 INCHES NOMINAL IN
APERTURE DIAMETER13.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
BOLT CIRCLE DIAMETER16.000 INCHES NOMINAL IN
SPECIAL FEATURESINNER EDGE OF GASKET IS TO BE CUT TO ALLOW FOR A 90 DEGREE BEND AT DIAMETER TO FORM FLANGED BODY
END ITEM IDENTIFICATIONVANE AXIAL FAN SIZE A30A
MATERIALRUBBER SYNTHETIC AND COTTON 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 3
9W-71128 PC NO 35Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4W-33551Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
B4W-33551-25Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 4W-33551-25?
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 4W-33551-25?
4W-33551-25 is a GASKET.
What parts can replace 4W-33551-25?
There are 3 known substitutes for 4W-33551-25: 9W-71128 PC NO 35, 4W-33551, B4W-33551-25. Substitute compatibility should be verified for your specific system.
What is the NSN for 4W-33551-25?
4W-33551-25 is cataloged in the U.S. Government catalog under NSN 5330-01-476-7841. 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 — 4W-33551-25

✓ 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.