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1173-24-20 — REDUCER,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1173-24-20: REDUCER,BOSS.

The REDUCER,BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_shape: ROUND FIRST END, connection_type: THREADED INTERNAL BOSS FIRST END, nominal_thread_size: 1.625 INCHES FIRST END IN, nominal_overall_length: 3.750 INCHES IN, end_item_identification: 5895-01-627-0869; SURVEILLANCE SYSTEM, ELEVATED SENSOR. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-663-3301, 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
1173-24-20
NSN: 4730-01-663-3301
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7X443 — MAIN MANUFACTURING PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_shapeROUND FIRST END
connection_typeTHREADED INTERNAL BOSS FIRST END
nominal_thread_size1.625 INCHES FIRST END IN
nominal_overall_length3.750 INCHES IN
end_item_identification5895-01-627-0869; SURVEILLANCE SYSTEM, ELEVATED SENSOR
nominal_outside_diameter0.500 INCHES SECOND END IN
thread_quantity_per_inch12 FIRST END
thread_series_designatorUN FIRST END
part_name_assigned_by_controlling_agencyTHREADED IN-LINE FLANGE
NSN4730-01-663-3301
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1173-24-20 · 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
•
FLANGE SHAPE: ROUND FIRST END
•
NOMINAL OVERALL LENGTH: 3.750 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
NOMINAL THREAD SIZE: 1.625 INCHES FIRST END IN
•
NOMINAL OUTSIDE DIAMETER: 0.500 INCHES SECOND END IN
•
THREAD QUANTITY PER INCH: 12 FIRST END
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND FIRST END
NOMINAL OVERALL LENGTH3.750 INCHES IN
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
NOMINAL THREAD SIZE1.625 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER0.500 INCHES SECOND END IN
PART NAME ASSIGNED BY CONTROLLING AGENCYTHREADED IN-LINE FLANGE
END ITEM IDENTIFICATION5895-01-627-0869; SURVEILLANCE SYSTEM, ELEVATED SENSOR
THREAD QUANTITY PER INCH12 FIRST END
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUN FIRST END
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 1173-24-20?
1173-24-20 is a REDUCER,BOSS.
What is the NSN for 1173-24-20?
1173-24-20 is cataloged in the U.S. Government catalog under NSN 4730-01-663-3301. This indicates validated use in U.S. government and defense supply chains.
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