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256-6603687-VHBM-52 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

256-6603687-VHBM-52: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-330-0503, 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
256-6603687-VHBM-52
NSN: 5330-01-330-0503
NIINs: 013300503, 015967236
FSC: 5330 — Packing and Gasket Materials
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN5330-01-330-0503
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 256-6603687-VHBM-52 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
•
ATTACHMENT HOLE DIAMETER: 0.406 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 4
•
CROSS-SECTIONAL THICKNESS: 0.367 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.750 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B443 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B446 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
RIM SURFACE WIDTH: 0.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 4.000 INCHES NOMINAL SINGLE CIRCLE IN
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.406 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY4
CROSS-SECTIONAL THICKNESS0.367 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.750 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B443 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B446 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
RIM SURFACE WIDTH0.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
ATTACHMENT FEATURE CIRCLE DIAMETER4.000 INCHES NOMINAL SINGLE CIRCLE IN
PERIPHERAL DIAMETER4.750 INCHES NOMINAL IN
CENTER HOLE DIAMETER2.515 INCHES MINIMUM AND 2.525 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
5959304-44Reference document
Same NSN cross-reference
Reference document — Secondary reference
803-5959304-X-44Same 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
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FREQUENTLY ASKED QUESTIONS
What is 256-6603687-VHBM-52?
256-6603687-VHBM-52 is a RETAINER,PACKING.
What parts can replace 256-6603687-VHBM-52?
There are 2 known substitutes for 256-6603687-VHBM-52: 5959304-44, 803-5959304-X-44. Substitute compatibility should be verified for your specific system.
What is the NSN for 256-6603687-VHBM-52?
256-6603687-VHBM-52 is cataloged in the U.S. Government catalog under NSN 5330-01-330-0503. This indicates validated use in U.S. government and defense supply chains.
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