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1551AS717-074 — REDUCER,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1551AS717-074: REDUCER,PIPE.

The REDUCER,PIPE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, reducer_type: CONCENTRIC, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) FIRST END, special_features: CLEANLINESS SHALL BE IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-299-9491, 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
1551AS717-074
NSN: 4730-01-299-9491
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialIRON OVERALL
reducer_typeCONCENTRIC
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) FIRST END
special_featuresCLEANLINESS SHALL BE IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.750 INCHES SECOND END IN
nominal_overall_length0.850 INCHES IN
thread_series_designatorNPT SECOND END
NSN4730-01-299-9491
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1551AS717-074 · 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
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 0.850 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
NOMINAL THREAD SIZE: 0.750 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH0.850 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
SPECIAL FEATURESCLEANLINESS SHALL BE IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE
SURFACE TREATMENTCADMIUM OVERALL
MATERIALIRON OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
1551AS717 1/2X3/4Reference document
Same NSN cross-reference
Reference document — Secondary reference
1551AS717Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 1551AS717-074?
1551AS717-074 is a REDUCER,PIPE.
What parts can replace 1551AS717-074?
There are 2 known substitutes for 1551AS717-074: 1551AS717 1/2X3/4, 1551AS717. Substitute compatibility should be verified for your specific system.
What is the NSN for 1551AS717-074?
1551AS717-074 is cataloged in the U.S. Government catalog under NSN 4730-01-299-9491. This indicates validated use in U.S. government and defense supply chains.
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