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1561790 ✓ 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

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include color: BLACK OVERALL, length: 2.250 INCHES NOMINAL IN, material: STEEL OVERALL, insert_size: 1.250-16 UN, portability: PORTABLE, blade_length: 1.312 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-239-2812, 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
1561790
NSN: 4730-00-239-2812
FSC: 4730
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
colorBLACK OVERALL
length2.250 INCHES NOMINAL IN
materialSTEEL OVERALL
insert_size1.250-16 UN
portabilityPORTABLE
blade_length1.312 INCHES NOMINAL IN
corner_shapeSQUARE OUTSIDE LEFT CORNER
current_typeAC/DC
flange_width0.0600 INCHES MINIMUM AND 0.0650 INCHES MAXIMUM IN
groove_width0.15 INCHES NOMINAL IN
grommet_styleROUND
hole_diameter1.50 INCHES NOMINAL IN
NSN4730-00-239-2812
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1561790 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
SW34048Interchangeable
interchangeable cross-reference
interchangeable
SW34048-1Interchangeable
interchangeable cross-reference
interchangeable
788HXInterchangeable
interchangeable cross-reference
interchangeable
10708Interchangeable
interchangeable cross-reference
interchangeable
F445-1Interchangeable
interchangeable cross-reference
interchangeable
7-445-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1561790?
1561790 is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace 1561790?
There are 18 known substitutes for 1561790: SW34048, SW34048-1, 788HX and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1561790?
1561790 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-239-2812. 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