PartsTable
Technical Data Sheet
Download PDF

CW-556F — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

CW-556F: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, special_features: SUPPLIER TO FURNISH RINGS IN STRAIGHT LENGTHS WITH SUFFICIENT OVERLAP FOR A FIFTEEN DEGREE SCARF AT ASSEMBLY, peripheral_diameter: 54.605 INCHES MINIMUM AND 54.645 INCHES MAXIMUM IN, center_hole_diameter: 54.375 INCHES NOMINAL IN, cross-sectional_height: 0.230 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-353-2071, 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
CW-556F
NSN: 5330-01-353-2071
FSC: 5330 — Packing and Gasket Materials
CAGE: 65427 — DC FABRICATORS INC (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
special_featuresSUPPLIER TO FURNISH RINGS IN STRAIGHT LENGTHS WITH SUFFICIENT OVERLAP FOR A FIFTEEN DEGREE SCARF AT ASSEMBLY
peripheral_diameter54.605 INCHES MINIMUM AND 54.645 INCHES MAXIMUM IN
center_hole_diameter54.375 INCHES NOMINAL IN
cross-sectional_height0.230 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-353-2071
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CW-556F 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: 0.230 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 54.605 INCHES MINIMUM AND 54.645 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 54.375 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.230 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER54.605 INCHES MINIMUM AND 54.645 INCHES MAXIMUM IN
SPECIAL FEATURESSUPPLIER TO FURNISH RINGS IN STRAIGHT LENGTHS WITH SUFFICIENT OVERLAP FOR A FIFTEEN DEGREE SCARF AT ASSEMBLY
CENTER HOLE DIAMETER54.375 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE 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 1
CW-2300CW PIECE 628Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy CW-556F?
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 CW-556F?
CW-556F is a PACKING,PREFORMED.
What parts can replace CW-556F?
There is 1 known substitute for CW-556F: CW-2300CW PIECE 628. Substitute compatibility should be verified for your specific system.
What is the NSN for CW-556F?
CW-556F is cataloged in the U.S. Government catalog under NSN 5330-01-353-2071. 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 — CW-556F