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Technical Data Sheet
PartsTable / COMPONENT / C19990
C19990 ✓ 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 FILTER ASSEMBLY,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL, case_style: SQUARE, seal_width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, design_type: DRY, intake_hole: NOT INCLUDED, temp_rating: -25.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-517-1050, 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
C19990
NSN: 4730-01-517-1050
FSC: 4730
CAGE: 32142 — HYDRASEARCH COMPANY, LLC (USA)
SPECIFICATIONS
materialSTEEL
case_styleSQUARE
seal_width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
design_typeDRY
intake_holeNOT INCLUDED
temp_rating-25.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
valve_recessNOT INCLUDED
bore_diameter3.125 INCHES NOMINAL IN
chamfer_length3.160 INCHES MINIMUM AND 3.170 INCHES MAXIMUM IN
overall_length6.495 INCHES MINIMUM AND 6.505 INCHES MAXIMUM IN
top_intake_portNOT INCLUDED
outside_diameter3.005 INCHES NOMINAL IN
NSN4730-01-517-1050
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C19990 · 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 4
19990Interchangeable
interchangeable cross-reference
interchangeable
2587141Interchangeable
interchangeable cross-reference
interchangeable
25-64108-02Interchangeable
interchangeable cross-reference
interchangeable
31358117Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C19990?
C19990 is a FILTER ASSEMBLY,ELECTRICAL.
What parts can replace C19990?
There are 4 known substitutes for C19990: 19990, 2587141, 25-64108-02 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C19990?
C19990 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-517-1050. 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