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Technical Data Sheet
PartsTable / COMPONENT / SCH40-3/4INX4INLNG
SCH40-3/4INX4INLNG ✓ 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 SCH40-3/4INX4INLNG is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-971-8234, 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
SCH40-3/4INX4INLNG
NSN: 4730-00-971-8234
FSC: 4730
CAGE: 14228 — CONTINENTAL CORP (USA)
SPECIFICATIONS
Part NumberSCH40-3/4INX4INLNG
NSN4730-00-971-8234
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SCH40-3/4INX4INLNG · 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
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 4.000 INCHES IN
•
STYLE DESIGNATOR: CLOSE
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
NOMINAL OVERALL LENGTH4.000 INCHES IN
STYLE DESIGNATORCLOSE
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
SPECIAL FEATURESSCHEDULE 40
THREAD SERIES DESIGNATORNPT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
SS-2-CNInterchangeable
interchangeable cross-reference
interchangeable
D1-3727-36Interchangeable
interchangeable cross-reference
interchangeable
NIPPLETYPE316Interchangeable
interchangeable cross-reference
interchangeable
2519394-1Interchangeable
interchangeable cross-reference
interchangeable
8489705Interchangeable
interchangeable cross-reference
interchangeable
1-2X2-316Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SCH40-3/4INX4INLNG?
SCH40-3/4INX4INLNG is a SCH40-3/4INX4INLNG.
What parts can replace SCH40-3/4INX4INLNG?
There are 16 known substitutes for SCH40-3/4INX4INLNG: SS-2-CN, D1-3727-36, NIPPLETYPE316 and 13 more. Substitute compatibility should be verified for your specific system.
Is SCH40-3/4INX4INLNG still available?
SCH40-3/4INX4INLNG 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