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142C558 ✓ 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

The FILTERING DISK,FLUID is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, mesh_size: 10.0, thickness: 0.056 INCHES NOMINAL IN, wire_diameter: 0.028 INCHES NOMINAL IN, style_designator: ROUND (BASICALLY FLAT), filtering_media_design: MESH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-047-8217, 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
142C558
NSN: 4730-01-047-8217
FSC: 4730
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 302
mesh_size10.0
thickness0.056 INCHES NOMINAL IN
wire_diameter0.028 INCHES NOMINAL IN
style_designatorROUND (BASICALLY FLAT)
filtering_media_designMESH
element_outside_diameter2.880 INCHES NOMINAL IN
NSN4730-01-047-8217
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 142C558 · 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
KEY FEATURES
•
STYLE DESIGNATOR: ROUND (BASICALLY FLAT)
•
ELEMENT OUTSIDE DIAMETER: 2.880 INCHES NOMINAL IN
•
FILTERING MEDIA DESIGN: MESH
•
THICKNESS: 0.056 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 302
•
WIRE DIAMETER: 0.028 INCHES NOMINAL IN
•
MESH SIZE: 10.0
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORROUND (BASICALLY FLAT)
ELEMENT OUTSIDE DIAMETER2.880 INCHES NOMINAL IN
FILTERING MEDIA DESIGNMESH
THICKNESS0.056 INCHES NOMINAL IN
MATERIALSTEEL COMP 302
WIRE DIAMETER0.028 INCHES NOMINAL IN
MESH SIZE10.0
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
177009T2Interchangeable
interchangeable cross-reference
interchangeable
120-21Interchangeable
interchangeable cross-reference
interchangeable
11B5090651-45Interchangeable
interchangeable cross-reference
interchangeable
C54503Interchangeable
interchangeable cross-reference
interchangeable
54503Interchangeable
interchangeable cross-reference
interchangeable
54935AInterchangeable
Copyholder,typist's
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 142C558?
142C558 is a FILTERING DISK,FLUID.
What parts can replace 142C558?
There are 16 known substitutes for 142C558: 177009T2, 120-21, 11B5090651-45 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 142C558?
142C558 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-047-8217. 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