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550 78 — CABLE ASSEMBLY,RADIO FREQUENCY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

550 78: CABLE ASSEMBLY,RADIO FREQUENCY.

The CABLE ASSEMBLY,RADIO FREQUENCY is a the manufacturer cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. Key specifications include material: STEEL ALLOY OVERALL, case_style: SQUARE, point_type: SPLIT, seal_width: 0.750 INCHES NOMINAL IN, point_angle: 135.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-282-5888, 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
550 78
NSN: 5330-00-282-5888
NIINs: 002825888, 011990394, 013323714, 016468167
FSC: 5330 — Packing and Gasket Materials
CAGE: 76680 — FEDERAL-MOGUL CORP CHASSIS PRODUCTS DIV (USA)
SPECIFICATIONS
materialSTEEL ALLOY OVERALL
case_styleSQUARE
point_typeSPLIT
seal_width0.750 INCHES NOMINAL IN
point_angle135.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length0.188 INCHES NOMINAL IN
flute_quantity2
overall_length0.875 INCHES NOMINAL IN
shank_diameter0.016 INCHES NOMINAL IN
special_featuresUSED ON BALLISTIC MISSILE EARLY WARNING SYSTEMS
cutting_end_styleGENERAL PURPOSE
NSN5330-00-282-5888
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 550 78 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
•
SEAL WIDTH: 0.750 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 11.250 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 9.750 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.750 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER11.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER9.750 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
76A55078Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 550 78?
550 78 is a CABLE ASSEMBLY,RADIO FREQUENCY.
What parts can replace 550 78?
There is 1 known substitute for 550 78: 76A55078. Substitute compatibility should be verified for your specific system.
What is the NSN for 550 78?
550 78 is cataloged in the U.S. Government catalog under NSN 5330-00-282-5888. This indicates validated use in U.S. government and defense supply chains.
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