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15.M.4 — SUPPORT,STRUCTURAL COMPONENT,AIR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

15.M.4: SUPPORT,STRUCTURAL COMPONENT,AIR.

SUPPORT,STRUCTURAL COMPONENT,AIR. Key specifications include material: GLASS FIBER, overall_width: 0.750 INCHES NOMINAL IN, overall_length: 1.100 INCHES NOMINAL IN, special_features: BLOCK,RADIUS - NONMETALLIC, 15 PLIES, 0.200 INCH THICK IN, material_thickness: 0.200 INCHES NOMINAL IN, end_item_identification: F/A-18E. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-288-3163, 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
15.M.4
NSN: 5331-01-288-3163
NIINs: 012883163, 015211477
FSC: 5331 — O-ring
CAGE: 3P473 — AMERICAN PROPULATION SYSTEMS (USA)
SPECIFICATIONS
materialGLASS FIBER
overall_width0.750 INCHES NOMINAL IN
overall_length1.100 INCHES NOMINAL IN
special_featuresBLOCK,RADIUS - NONMETALLIC, 15 PLIES, 0.200 INCH THICK IN
material_thickness0.200 INCHES NOMINAL IN
end_item_identificationF/A-18E
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencySUPPORT,STRUCTURAL,AIRCRAFT
NSN5331-01-288-3163
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 15.M.4 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
SUBSTITUTES & CROSS-REFERENCES 1
5331PL0837850Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 15.M.4?
15.M.4 is a SUPPORT,STRUCTURAL COMPONENT,AIR.
What parts can replace 15.M.4?
There is 1 known substitute for 15.M.4: 5331PL0837850. Substitute compatibility should be verified for your specific system.
What is the NSN for 15.M.4?
15.M.4 is cataloged in the U.S. Government catalog under NSN 5331-01-288-3163. This indicates validated use in U.S. government and defense supply chains.
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