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Technical Data Sheet
PartsTable / COMPONENT / B1623
B1623 ✓ 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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include material: COPPER ALLOY 836 OVERALL, nut_style: SLIP JOINT NUT, flow_angle: 90.0 DEGREES, leg_length: 1.624 INCHES NOMINAL ALL ENDS IN, nut_height: 0.562 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-270-3886, 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
B1623
NSN: 4730-00-270-3886
FSC: 4730
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 836 OVERALL
nut_styleSLIP JOINT NUT
flow_angle90.0 DEGREES
leg_length1.624 INCHES NOMINAL ALL ENDS IN
nut_height0.562 INCHES NOMINAL IN
thread_class2B
thread_seriesNPSM
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
furnished_itemsSLIP JOINT WASHER AND FRICTION RING
connection_styleSOCKET (TUBE) ALL ENDS
style_designatorTHREADED AND PLAIN
thread_directionRIGHT-HAND
NSN4730-00-270-3886
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B1623 · 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
•
THREAD CLASS: 2B
•
NUT HEIGHT: 0.530 INCHES NOMINAL IN
•
THREAD SERIES: NPSM
•
NOMINAL THREAD SIZE: 1.500 INCHES IN
•
NOMINAL TUBE OUTSIDE DIAMETER: 1.500 INCHES IN
•
THREAD QUANTITY PER INCH: 11.500
•
NOMINAL PIPE SIZE DESIGNATION: 1.500 INCHES IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NUT HEIGHT0.530 INCHES NOMINAL IN
THREAD SERIESNPSM
NOMINAL THREAD SIZE1.500 INCHES IN
NOMINAL TUBE OUTSIDE DIAMETER1.500 INCHES IN
THREAD QUANTITY PER INCH11.500
NOMINAL PIPE SIZE DESIGNATION1.500 INCHES IN
MATERIALCOPPER ALLOY OVERALL
NUT STYLESLIP JOINT NUT
FURNISHED ITEMSSLIP JOINT WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
FFB187TYPE751Interchangeable
interchangeable cross-reference
interchangeable
8633Interchangeable
interchangeable cross-reference
interchangeable
14139-14274Interchangeable
interchangeable cross-reference
interchangeable
320602Interchangeable
interchangeable cross-reference
interchangeable
6303Interchangeable
interchangeable cross-reference
interchangeable
STKX109Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1623?
B1623 is a SOCKET,PLUG-IN ELECTRONIC COMPON.
What parts can replace B1623?
There are 19 known substitutes for B1623: FFB187TYPE751, 8633, 14139-14274 and 16 more. Substitute compatibility should be verified for your specific system.
Is B1623 still available?
B1623 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