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Technical Data Sheet
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7040X8B — Technical Data Sheet

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— · 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 ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OR COPPER ALLOY 377, style_designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL), surface_treatment: CADMIUM AND CHROMATE, external_thread_size: 3/4-14, internal_thread_size: 1/2-14, external_thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-277-5609, 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
7040X8B
NSN: 4730-00-277-5609
FSC: 4730
CAGE: 79470 — DANA CORP WEATHERHEAD DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OR COPPER ALLOY 377
style_designatorOUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
surface_treatmentCADMIUM AND CHROMATE
external_thread_size3/4-14
internal_thread_size1/2-14
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
specification/standard_data88044AN912 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
working_temp_and_service_type225.0 DEG FAHRENHEIT NOMINAL HYDRAULIC OIL AND 225.0 DEG FAHRENHEIT NOMINAL OXYGEN
working_pressure_and_service_type3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL HYDRAULIC OIL AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OXYGEN LBS
material_document_and_classificationQQ-B-626, ALLOY 360, 1/2H FED SPEC 1ST MATERIAL RESPONSE AND QQ-B-626, ALLOY 377 FED SPEC 2ND MATERIAL RESPONSE
external_screw_thread_series_designatorANPT
NSN4730-00-277-5609
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7040X8B · 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
•
SURFACE TREATMENT: CADMIUM AND CHROMATE
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
•
MATERIAL: COPPER ALLOY 360 OR COPPER ALLOY 377
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626, ALLOY 360, 1/2H FED SPEC 1ST MATERIAL RESPONSE AND QQ-B-626, ALLOY 377 FED SPEC 2ND MATERIAL RESPONSE
•
SPECIFICATION/STANDARD DATA: 88044AN912 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
TECHNICAL CHARACTERISTICS
SURFACE TREATMENTCADMIUM AND CHROMATE
INTERNAL THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
MATERIALCOPPER ALLOY 360 OR COPPER ALLOY 377
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626, ALLOY 360, 1/2H FED SPEC 1ST MATERIAL RESPONSE AND QQ-B-626, ALLOY 377 FED SPEC 2ND MATERIAL RESPONSE
SPECIFICATION/STANDARD DATA88044AN912 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
INTERNAL SCREW THREAD SERIES DESIGNATORANPT
EXTERNAL SCREW THREAD SERIES DESIGNATORANPT
EXTERNAL THREAD DIRECTIONRIGHT-HAND
WORKING TEMP AND SERVICE TYPE225.0 DEG FAHRENHEIT NOMINAL HYDRAULIC OIL AND 225.0 DEG FAHRENHEIT NOMINAL OXYGEN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
7038X4BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10014InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
895-83InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS4842InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
AS4861InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
AS4861-07InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7040X8B?
7040X8B is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 7040X8B?
There are 10 known substitutes for 7040X8B: 7038X4B, 10014, 895-83 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7040X8B?
7040X8B is cataloged in the Federal Logistics Information System under NSN 4730-00-277-5609. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026