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PartsTable / COMPONENT / 214-251
214-251 ✓ 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,AIRCRAFT INSTRUMENTS is a the manufacturer industrial component. Key specifications include depth: 1.171 INCHES NOMINAL IN, width: 6.750 INCHES NOMINAL IN, length: 10.125 INCHES NOMINAL IN, material: WOOD ENCLOSURE, tip_type: OPEN END, nut_style: HEXAGON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-294-0495, 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
214-251
NSN: 4730-00-294-0495
FSC: 4730
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
depth1.171 INCHES NOMINAL IN
width6.750 INCHES NOMINAL IN
length10.125 INCHES NOMINAL IN
materialWOOD ENCLOSURE
tip_typeOPEN END
nut_styleHEXAGON
thickness0.006 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
body_styleBLOCK TYPE
body_width4.500 INCHES NOMINAL IN
bore_shapeSTRAIGHT
nut_height0.062 INCHES NOMINAL IN
body_height6.750 INCHES NOMINAL IN
NSN4730-00-294-0495
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 214-251 · 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 14
MILB857ATYPE1STYLEAGRADE2Interchangeable
interchangeable cross-reference
interchangeable
6606Interchangeable
interchangeable cross-reference
interchangeable
V6606Interchangeable
interchangeable cross-reference
interchangeable
SMD96986Interchangeable
interchangeable cross-reference
interchangeable
9016Interchangeable
interchangeable cross-reference
interchangeable
4026121Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 214-251?
214-251 is a FILTER,AIRCRAFT INSTRUMENTS.
What parts can replace 214-251?
There are 14 known substitutes for 214-251: MILB857ATYPE1STYLEAGRADE2, 6606, V6606 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 214-251?
214-251 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-294-0495. 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