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PartsTable / COMPONENT / 2670-57 ITEM 65
2670-57 ITEM 65 ✓ 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 OVERALL, reducer_type: CONCENTRIC, special_features: ONE REQD;1 1/8 X 3/4 SIZE, material_document_and_classification: ASTM B-75 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-178-8465, 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
2670-57 ITEM 65
NSN: 4730-01-178-8465
FSC: 4730
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER OVERALL
reducer_typeCONCENTRIC
special_featuresONE REQD;1 1/8 X 3/4 SIZE
material_document_and_classificationASTM B-75 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-178-8465
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2670-57 ITEM 65 · 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
•
MATERIAL: COPPER OVERALL
•
REDUCER TYPE: CONCENTRIC
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-75 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER OVERALL
SPECIAL FEATURESONE REQD;1 1/8 X 3/4 SIZE
REDUCER TYPECONCENTRIC
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-75 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
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 2670-57 ITEM 65?
2670-57 ITEM 65 is a REDUCER,TUBE.
What parts can replace 2670-57 ITEM 65?
There are 25 known substitutes for 2670-57 ITEM 65: 267057, DD19CA061, NFT5-4 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2670-57 ITEM 65?
2670-57 ITEM 65 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-178-8465. 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