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Technical Data Sheet
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4-50-0621 — FLAP,WING LANDING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4-50-0621: FLAP,WING LANDING.

The FLAP,WING LANDING is a the manufacturer industrial component. Key specifications include supplementary_features: PART OF SKIN PANEL ASSEMBLY-UPPER OUTBOARD FLAP, WING STATION 768.24 TO 805.85, end_item_identification: B-52 AIRCRAFT, part_name_assigned_by_controlling_agency: BONDED PANEL ASSY. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-865-1711, 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
4-50-0621
NSN: 5331-00-865-1711
NIINs: 008651711, 016463906
FSC: 5331 — O-ring
CAGE: 96695 — NSL ANALYTICAL SERVICES, INC (USA)
SPECIFICATIONS
supplementary_featuresPART OF SKIN PANEL ASSEMBLY-UPPER OUTBOARD FLAP, WING STATION 768.24 TO 805.85
end_item_identificationB-52 AIRCRAFT
part_name_assigned_by_controlling_agencyBONDED PANEL ASSY
NSN5331-00-865-1711
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4-50-0621 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: 0.416 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.416 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 1
54-50-0621HReference document
Same NSN cross-reference
Reference document — Secondary reference
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 4-50-0621?
4-50-0621 is a FLAP,WING LANDING.
What parts can replace 4-50-0621?
There is 1 known substitute for 4-50-0621: 54-50-0621H. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-50-0621?
4-50-0621 is cataloged in the U.S. Government catalog under NSN 5331-00-865-1711. This indicates validated use in U.S. government and defense supply chains.
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