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Technical Data Sheet
PartsTable / COMPONENT / 845-0445071ITEM38
845-0445071ITEM38 ✓ 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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, reducer_type: CONCENTRIC, nominal_thread_size: 0.625 INCHES FIRST END IN, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: FREE OF MERCURY CONTAMINATION FOR NUCLEAR PROPULSION PLANTS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-179-2910, 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
845-0445071ITEM38
NSN: 4730-01-179-2910
FSC: 4730
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
reducer_typeCONCENTRIC
nominal_thread_size0.625 INCHES FIRST END IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsFREE OF MERCURY CONTAMINATION FOR NUCLEAR PROPULSION PLANTS
NSN4730-01-179-2910
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 845-0445071ITEM38 · 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
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: FREE OF MERCURY CONTAMINATION FOR NUCLEAR PROPULSION PLANTS
•
NOMINAL THREAD SIZE: 0.625 INCHES FIRST END IN
•
MATERIAL: COPPER ALLOY OVERALL
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REDUCER TYPE: CONCENTRIC
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSFREE OF MERCURY CONTAMINATION FOR NUCLEAR PROPULSION PLANTS
NOMINAL THREAD SIZE0.625 INCHES FIRST END IN
MATERIALCOPPER ALLOY OVERALL
CRITICALITY CODE JUSTIFICATIONZZZY
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
REDUCER TYPECONCENTRIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
267057Interchangeable
interchangeable cross-reference
interchangeable
DD19CA061Interchangeable
interchangeable cross-reference
interchangeable
NFT5-4Interchangeable
interchangeable cross-reference
interchangeable
A16447Interchangeable
interchangeable cross-reference
interchangeable
202208-4-4BInterchangeable
interchangeable cross-reference
interchangeable
503-4556027ITEM3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-0445071ITEM38?
845-0445071ITEM38 is a REDUCER,TUBE.
What parts can replace 845-0445071ITEM38?
There are 22 known substitutes for 845-0445071ITEM38: 267057, DD19CA061, NFT5-4 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-0445071ITEM38?
845-0445071ITEM38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-179-2910. 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