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Technical Data Sheet
PartsTable / COMPONENT / 1627B
1627B ✓ 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

Microsoft 1627 AC Adapter for Surface Pro 3 Docking Station. Key specifications include material: COPPER ALLOY, link_style: ROLLER, STRAIGHT EDGE, thread_class: 5A STUD THREAD A, thread_length: 0.875 INCHES MAXIMUM STUD THREAD IN, overall_length: 9.500 INCHES NOMINAL IN, link_plate_width: 2.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-048-1788, 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
1627B
NSN: 4730-00-048-1788
FSC: 4730
CAGE: 70270 — STEWART-WARNER ALEMITE SALES CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
link_styleROLLER, STRAIGHT EDGE
thread_class5A STUD THREAD A
thread_length0.875 INCHES MAXIMUM STUD THREAD IN
overall_length9.500 INCHES NOMINAL IN
link_plate_width2.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.750 INCHES STUD THREAD IN
pin_fastening_methodCOTTER PIN
nominal_pitch_distance2.980 INCHES IN
minimum_tensile_strength80000 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch10 NUT THREAD
NSN4730-00-048-1788
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1627B · 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 29
A232-1181Interchangeable
interchangeable cross-reference
interchangeable
39406Interchangeable
interchangeable cross-reference
interchangeable
505936-1Interchangeable
interchangeable cross-reference
interchangeable
31-74228Interchangeable
interchangeable cross-reference
interchangeable
6388-1/2Interchangeable
interchangeable cross-reference
interchangeable
10938-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1627B?
1627B is a Microsoft 1627 AC Adapter for Surface Pro 3 Docking Station.
What parts can replace 1627B?
There are 29 known substitutes for 1627B: A232-1181, 39406, 505936-1 and 26 more. Substitute compatibility should be verified for your specific system.
Is 1627B still available?
1627B 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