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Technical Data Sheet
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AP50 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include material: PAPER FILTERING MEDIUM, design_type: NONREUSABLE, body_diameter: 10.310 INCHES NOMINAL IN, special_features: TOP END PLATE CENTER HOLE 0.438 IN. DIA IN, style_designator: CYLINDRICAL W/CLOSED ENDS, body_overall_length: 12.000 INCHES NOMINAL IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-497-5377, 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
AP50
NSN: 4730-00-497-5377
FSC: 4730
CAGE: 01673 — SPS TECHNOLOGIES, LLC DBA AIRDROME PRECISION COMPONENTS (USA)
SPECIFICATIONS
materialPAPER FILTERING MEDIUM
design_typeNONREUSABLE
body_diameter10.310 INCHES NOMINAL IN
special_featuresTOP END PLATE CENTER HOLE 0.438 IN. DIA IN
style_designatorCYLINDRICAL W/CLOSED ENDS
body_overall_length12.000 INCHES NOMINAL IN
body_inside_diameter7.937 INCHES NOMINAL IN
filtering_media_designPLEATED SINGLE FILTERING MEDIA RESPONSE
NSN4730-00-497-5377
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AP50 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A50Interchangeable
interchangeable cross-reference
interchangeable
3X546Interchangeable
interchangeable cross-reference
interchangeable
ARM-1227Interchangeable
interchangeable cross-reference
interchangeable
A140CInterchangeable
interchangeable cross-reference
interchangeable
AP-4005Interchangeable
interchangeable cross-reference
interchangeable
7827256Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AP50?
AP50 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What parts can replace AP50?
There are 11 known substitutes for AP50: A50, 3X546, ARM-1227 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AP50?
AP50 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-497-5377. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026