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Technical Data Sheet
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152978 ✓ 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 COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED INTERNAL, nominal_thread_size: 0.750 INCHES ALL ENDS IN, nominal_overall_length: 2.250 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-994-7381, 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
152978
NSN: 4730-00-994-7381
FSC: 4730
CAGE: 28056 — HEINTZ CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED INTERNAL
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length2.250 INCHES IN
thread_series_designatorNPTF ALL ENDS
NSN4730-00-994-7381
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 152978 · 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 (PIPE) ALL ENDS
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: NPTF ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
NOMINAL OVERALL LENGTH: 2.250 INCHES IN
•
STYLE DESIGNATOR: THREADED INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPTF ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
NOMINAL OVERALL LENGTH2.250 INCHES IN
STYLE DESIGNATORTHREADED INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
7-444-000640Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3Interchangeable
interchangeable cross-reference
interchangeable
7884-59-1Interchangeable
interchangeable cross-reference
interchangeable
D7884-59-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 152978?
152978 is a COUPLING,PIPE.
What parts can replace 152978?
There are 4 known substitutes for 152978: 7-444-000640, ASME B16.3, 7884-59-1 and 1 more. Substitute compatibility should be verified for your specific system.
Is 152978 still available?
152978 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