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Technical Data Sheet
PartsTable / COMPONENT / 1-1/2IN-PLUG
1-1/2IN-PLUG ✓ 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

The 1-1/2IN-PLUG is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-5943, 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
1-1/2IN-PLUG
NSN: 4730-00-289-5943
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
Part Number1-1/2IN-PLUG
NSN4730-00-289-5943
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1-1/2IN-PLUG · 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
•
CONNECTION STYLE: PLAIN
•
HEAD TYPE: SOLID
•
MATERIAL: COPPER ALLOY OVERALL
•
THREAD SERIES DESIGNATOR: NPTF EXTERNAL
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.750 INCHES IN
•
BODY TYPE: SOLID
•
NOMINAL THREAD SIZE: 0.750 INCHES EXTERNAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN
HEAD TYPESOLID
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPTF EXTERNAL
THREAD DIRECTIONRIGHT-HAND EXTERNAL
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.750 INCHES IN
BODY TYPESOLID
NOMINAL THREAD SIZE0.750 INCHES EXTERNAL IN
DRIVE END STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
QA62605Interchangeable
interchangeable cross-reference
interchangeable
25904Interchangeable
interchangeable cross-reference
interchangeable
M285Interchangeable
interchangeable cross-reference
interchangeable
2547999Interchangeable
interchangeable cross-reference
interchangeable
388-6Interchangeable
interchangeable cross-reference
interchangeable
8557P2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-1/2IN-PLUG?
1-1/2IN-PLUG is a 1-1/2IN-PLUG.
What parts can replace 1-1/2IN-PLUG?
There are 12 known substitutes for 1-1/2IN-PLUG: QA62605, 25904, M285 and 9 more. Substitute compatibility should be verified for your specific system.
Is 1-1/2IN-PLUG still available?
1-1/2IN-PLUG 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