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8550 — SPRING ASSEMBLY,LEAF

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

8550: SPRING ASSEMBLY,LEAF.

The SPRING ASSEMBLY,LEAF is a the manufacturer industrial component. Key specifications include special_features: USES 4 AA BATTERIES, end_item_identification: AIRCRAFT, KDC10, AIRFRAME, MCDONNELL DOUGLAS CORP, voltage_in_volts_and_current_type: 120.0 AC. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-356-2045, 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
MRO→ MRO_GENERAL→ 8550
NSN: 4720-00-356-2045
NIINs: 003562045, 004606804, 004847032, 005269831, 006145521, 010992298, 011070702, 011362832, 011428046, 013089926, 013282154, 013997723, 014221488, 014405497, 016651855
FSC: 4720 — Hose and Flexible Tubing
CAGE: 82815 — MOTO-SEARCH MFG CO INC (USA)
SPECIFICATIONS
special_featuresUSES 4 AA BATTERIES
end_item_identificationAIRCRAFT, KDC10, AIRFRAME, MCDONNELL DOUGLAS CORP
voltage_in_volts_and_current_type120.0 AC
NSN4720-00-356-2045
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 8550 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MEASURING METHOD AND LENGTH: 240.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MINIMUM INSIDE BENDING RADIUS: 3.000 INCHES IN
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
END CONNECTION DESIGN: STRAIGHT FIRST END
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED COTTON CORD OR 1ST LAYER BRAIDED FABRIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH240.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
MINIMUM INSIDE BENDING RADIUS3.000 INCHES IN
CONNECTION STYLESWIVEL NUT FLARE FIRST END
END CONNECTION DESIGNSTRAIGHT FIRST END
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED COTTON CORD OR 1ST LAYER BRAIDED FABRIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.563 INCHES NOMINAL IN
END FITTING COMPONENT AND MATERIALCOMPLETE FITTING COPPER ALLOY ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 4
3219-38Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3219-446Reference document
Same NSN cross-reference
Reference document — Secondary reference
1BR19BReference document
Same NSN cross-reference
Reference document — Secondary reference
SCB90693Same 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 8550?
8550 is a SPRING ASSEMBLY,LEAF. It is classified as a MRO (MRO_GENERAL).
What parts can replace 8550?
There are 4 known substitutes for 8550: 3219-38, 3219-446, 1BR19B and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8550?
8550 is cataloged in the U.S. Government catalog under NSN 4720-00-356-2045. This indicates validated use in U.S. government and defense supply chains.
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