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217940 — REDUCER,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

217940: REDUCER,HOSE.

The REDUCER,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_type: DRILLED, thickness: 0.032 INCHES NOMINAL IN, bore_shape: STRAIGHT, head_style: FLAT CHAMFER, seat_angle: 45.0 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-478-3895, 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
217940
NSN: 4730-01-478-3895
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10237 — CADILLAC GAGE TEXTRON INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_typeDRILLED
thickness0.032 INCHES NOMINAL IN
bore_shapeSTRAIGHT
head_styleFLAT CHAMFER
seat_angle45.0 DEGREES
body_length20.0 INCHES NOMINAL IN
head_height0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
shell_length4.500 INCHES NOMINAL IN
thread_class3A A
bore_diameter70.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MINIMUM
NSN4730-01-478-3895
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 217940 · 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
SUBSTITUTES & CROSS-REFERENCES 1
7314Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 217940?
217940 is a REDUCER,HOSE.
What parts can replace 217940?
There is 1 known substitute for 217940: 7314. Substitute compatibility should be verified for your specific system.
What is the NSN for 217940?
217940 is cataloged in the U.S. Government catalog under NSN 4730-01-478-3895. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.