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39-18356-503 — SUPPORT,STRUCTURAL COMPONENT,AIR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

39-18356-503: SUPPORT,STRUCTURAL COMPONENT,AIR.

SUPPORT,STRUCTURAL COMPONENT,AIR. Key specifications include material: STEEL CORROSION RESISTING, overall_width: 2.500 INCHES NOMINAL IN, overall_length: 3.800 INCHES NOMINAL IN, special_features: USED AS TUBE SUPPORT ON NOSE COWL ANTI-ICING(KIT);MATL AISI 17-7PH,SURFACE COND 2D, aircraft_location: NOSE COWL, material_thickness: 0.050 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 1560-01-157-0140, 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
39-18356-503
NSN: 1560-01-157-0140
FSC: 1560 — Airframe Structural Components
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_width2.500 INCHES NOMINAL IN
overall_length3.800 INCHES NOMINAL IN
special_featuresUSED AS TUBE SUPPORT ON NOSE COWL ANTI-ICING(KIT);MATL AISI 17-7PH,SURFACE COND 2D
aircraft_locationNOSE COWL
material_thickness0.050 INCHES NOMINAL IN
aircraft_mission_design_seriesB-52
material_document_and_classificationMIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE
NSN1560-01-157-0140
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SUPPORT,STRUCTURAL COMPONENT,AIR TITLE COMPONENT PN 39-18356-503 MFR SUPPORT,STRUCTURAL COM
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL THICKNESS: 0.050 INCHES NOMINAL IN
•
AIRCRAFT LOCATION: NOSE COWL
•
MATERIAL: STEEL CORROSION RESISTING
•
AIRCRAFT MISSION DESIGN SERIES: B-52
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH3.800 INCHES NOMINAL IN
OVERALL WIDTH2.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.050 INCHES NOMINAL IN
SPECIAL FEATURESUSED AS TUBE SUPPORT ON NOSE COWL ANTI-ICING(KIT);MATL AISI 17-7PH,SURFACE COND 2D
AIRCRAFT LOCATIONNOSE COWL
MATERIALSTEEL CORROSION RESISTING
AIRCRAFT MISSION DESIGN SERIESB-52
OTHER ITEMS IN FSC 1560 — Airframe Structural Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1560-00-003-1977 1560-00-003-3257 1560-00-004-4244 1560-00-005-7280 1560-00-006-0576 1560-00-006-6538 1560-00-007-9578 1560-00-009-4192
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 39-18356-503?
39-18356-503 is a SUPPORT,STRUCTURAL COMPONENT,AIR.
What is the NSN for 39-18356-503?
39-18356-503 is cataloged in the U.S. Government catalog under NSN 1560-01-157-0140. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.