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PartsTable / COMPONENT / PL-1807 ITEM 26
PL-1807 ITEM 26 ✓ 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 ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A SECOND END A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, special_features: CONNECTS 0.25IN. O.D.

TUBING TO CASING AND SEAL GLAND FOR FLUSHING IN, nominal_thread_size: 0.4375 INCHES SECOND END 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 4730-01-446-0978, 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
PL-1807 ITEM 26
NSN: 4730-01-446-0978
FSC: 4730
CAGE: 71639 — ALFRED CONHAGEN, INC. (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A SECOND END A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
special_featuresCONNECTS 0.25IN. O.D. TUBING TO CASING AND SEAL GLAND FOR FLUSHING IN
nominal_thread_size0.4375 INCHES SECOND END IN
maximum_operating_temp107.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationCENTRIFUGAL PUMP, CONHAGEN ALFRED INC., MODEL NO. XRCNY
media_for_which_designedWATER, SALT SINGLE RESPONSE
thread_quantity_per_inch20 SECOND END
thread_series_designatorUNF SECOND END
furnished_items_and_quantity1 COUPLING NUT
NSN4730-01-446-0978
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: PL-1807 ITEM 26 · 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
•
MAXIMUM OPERATING TEMP: 107.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE FIRST END
•
THREAD CLASS: 2A SECOND END A
•
FURNISHED ITEMS AND QUANTITY: 1 COUPLING NUT
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP107.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
END ITEM IDENTIFICATIONCENTRIFUGAL PUMP, CONHAGEN ALFRED INC., MODEL NO. XRCNY
THREAD CLASS2A SECOND END A
FURNISHED ITEMS AND QUANTITY1 COUPLING NUT
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL THREAD SIZE0.4375 INCHES SECOND END IN
CONNECTION STYLEPLAIN (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
5Z126Interchangeable
interchangeable cross-reference
interchangeable
AA1807Interchangeable
interchangeable cross-reference
interchangeable
GB20GL24-200Interchangeable
interchangeable cross-reference
interchangeable
RR-1214Interchangeable
interchangeable cross-reference
interchangeable
PL-1807 REV BInterchangeable
interchangeable cross-reference
interchangeable
PL-1807 ITEM 6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PL-1807 ITEM 26?
PL-1807 ITEM 26 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace PL-1807 ITEM 26?
There are 22 known substitutes for PL-1807 ITEM 26: 5Z126, AA1807, GB20GL24-200 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PL-1807 ITEM 26?
PL-1807 ITEM 26 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-446-0978. 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