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PartsTable / COMPONENT / W138326T20
W138326T20 ✓ 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 NIPPLE,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: LONG, surface_treatment: ZINC OR OXIDE OVERALL, nominal_thread_size: 0.250 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-199-3552, 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
W138326T20
NSN: 4730-00-199-3552
FSC: 4730
CAGE: 88663 — DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorLONG
surface_treatmentZINC OR OXIDE OVERALL
nominal_thread_size0.250 INCHES ALL ENDS IN
nominal_overall_length2.500 INCHES IN
media_for_which_designedFLUID SINGLE RESPONSE
thread_series_designatorNPT ALL ENDS
specification/standard_data81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51873 GOVERNMENT STANDARD
material_document_and_classificationASTM A120 OR A53 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-199-3552
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: W138326T20 · 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
•
STYLE DESIGNATOR: LONG
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A120 OR A53 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: ZINC OR OXIDE OVERALL
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
NOMINAL OVERALL LENGTH: 2.500 INCHES IN
•
MEDIA FOR WHICH DESIGNED: FLUID SINGLE RESPONSE
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORLONG
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A120 OR A53 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTZINC OR OXIDE OVERALL
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
NOMINAL OVERALL LENGTH2.500 INCHES IN
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
THREAD SERIES DESIGNATORNPT ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51873 GOVERNMENT STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
WW-V-35Interchangeable
interchangeable cross-reference
interchangeable
T-580-1 1/2Interchangeable
interchangeable cross-reference
interchangeable
21-161Interchangeable
interchangeable cross-reference
interchangeable
JH2116-1Interchangeable
interchangeable cross-reference
interchangeable
5190442Interchangeable
interchangeable cross-reference
interchangeable
128Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W138326T20?
W138326T20 is a NIPPLE,PIPE.
What parts can replace W138326T20?
There are 17 known substitutes for W138326T20: WW-V-35, T-580-1 1/2, 21-161 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W138326T20?
W138326T20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-199-3552. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026