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ISO-1539 — NIPPLE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ISO-1539: NIPPLE,PIPE.

The NIPPLE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, nominal_thickness: 0.145 INCHES ALL ENDS IN, nominal_thread_size: 1.50 INCHES ALL ENDS IN, nominal_overall_length: 8.0 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-696-4299, 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
ISO-1539
NSN: 4730-01-696-4299
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 55242 — ISOMETRICS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
nominal_thickness0.145 INCHES ALL ENDS IN
nominal_thread_size1.50 INCHES ALL ENDS IN
nominal_overall_length8.0 INCHES IN
end_item_identification4930-01-612-3541
media_for_which_designedSTEAM THIRD RESPONSE
nominal_outside_diameter1.50 INCHES ALL ENDS IN
thread_quantity_per_inch11.5 ALL ENDS
thread_series_designatorNPT ALL ENDS
material_document_and_classificationASTM B687 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-696-4299
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ISO-1539 · 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
•
NOMINAL OVERALL LENGTH: 8.0 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B687 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 1.50 INCHES ALL ENDS IN
•
NOMINAL OUTSIDE DIAMETER: 1.50 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: WATER FOURTH RESPONSE
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH8.0 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B687 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE1.50 INCHES ALL ENDS IN
NOMINAL OUTSIDE DIAMETER1.50 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDWATER FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDOIL SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDSTEAM THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ISO-1539?
ISO-1539 is a NIPPLE,PIPE.
What is the NSN for ISO-1539?
ISO-1539 is cataloged in the U.S. Government catalog under NSN 4730-01-696-4299. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.