PartsTable
Technical Data Sheet
78405 ✓ Verified by PartsTable
Legrand · 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 TUBE is a Legrand industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.250 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-735-4388, 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
78405
NSN: 4730-00-735-4388
FSC: 4730
CAGE: 96046 — CRANE PUMPS & SYSTEMS PFT CORP DIV CRANE PUMPS & SYSTEM PFT CORP. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleHEXAGON
nut_height0.250 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.684 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
drilled_hole_diameter0.050 INCHES NOMINAL IN
hole_type_and_quantity2 DRILLED
hole_configuration_styleCONFIGURATION H
NSN4730-00-735-4388
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 78405 · Legrand ⚠ 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: ALUMINUM BODY
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS
LEG LENGTH: 2.750 INCHES NOMINAL IN
QUICK DISCONNECT NOMINAL SIZE: 1.500 INCHES ALL ENDS IN
CONNECTION STYLE: PLAIN ALL ENDS
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM BODY
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
QUICK DISCONNECT METHODCAM-LOCKING ALL ENDS
LEG LENGTH2.750 INCHES NOMINAL IN
QUICK DISCONNECT NOMINAL SIZE1.500 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
SURFACE TREATMENTANODIZE BODY
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
11541Interchangeable
interchangeable cross-reference
interchangeable
120 41/64Interchangeable
interchangeable cross-reference
interchangeable
49741Interchangeable
interchangeable cross-reference
interchangeable
50545Interchangeable
interchangeable cross-reference
interchangeable
BP4105Interchangeable
interchangeable cross-reference
interchangeable
SC-D-69993Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78405?
78405 is a ADAPTER,STRAIGHT,PIPE TO TUBE manufactured by Legrand.
What parts can replace 78405?
There are 21 known substitutes for 78405: 11541, 120 41/64, 49741 and 18 more. Substitute compatibility should be verified for your specific system.
Is 78405 still available?
78405 is currently cancelled.
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