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Technical Data Sheet
PartsTable / COMPONENT / MAH-4
MAH-4 ✓ 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

IBM PCI-X DUAL CHANNEL U320 SCSI ADAPTER. Key specifications include overall_width: 0.320 INCHES NOMINAL IN, inside_diameter: 0.250 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, style_designator: WIRE, end_item_identification: 5-TON (M18, M931) TRACTOR TRUCK.. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-871-6729, 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
MAH-4
NSN: 4730-00-871-6729
FSC: 4730
CAGE: 35871 — ACD TRIDON INC (CAN)
SPECIFICATIONS
overall_width0.320 INCHES NOMINAL IN
inside_diameter0.250 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
style_designatorWIRE
end_item_identification5-TON (M18, M931) TRACTOR TRUCK.
NSN4730-00-871-6729
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MAH-4 · 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 28
1705W231Interchangeable
interchangeable cross-reference
interchangeable
73305Interchangeable
interchangeable cross-reference
interchangeable
2530000157639Interchangeable
interchangeable cross-reference
interchangeable
5702Interchangeable
IBM PCI-X Dual Channel U320 Scsi Adapter
interchangeable
S702Interchangeable
interchangeable cross-reference
interchangeable
663193Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MAH-4?
MAH-4 is a IBM PCI-X DUAL CHANNEL U320 SCSI ADAPTER.
What parts can replace MAH-4?
There are 28 known substitutes for MAH-4: 1705W231, 73305, 2530000157639 and 25 more. Substitute compatibility should be verified for your specific system.
Is MAH-4 still available?
MAH-4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026