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Technical Data Sheet
PartsTable / COMPONENT / 891901
891901 ✓ 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 HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include functional_description: USED TO CREATE AN ALARM DURING FIRE OR OVER HEATING, end_item_identification: AIRCRAFT, reference_data_and_literature: MEGGITT SAFETY SYSTEM MANUAL 26-10-11, part_name_assigned_by_controlling_agency: MODEL 801DRH FIRE/OVERHEAT DETECTOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-595-0083, 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
891901
NSN: 4730-00-595-0083
FSC: 4730
CAGE: 62265 — VOLVO TRUCKS NORTH AMERICA, INC. DBA (FOREIGN PARENT IS VOLVO LASTVAGNAR AB, GOTEBORG, SWEDEN.) (USA)
SPECIFICATIONS
functional_descriptionUSED TO CREATE AN ALARM DURING FIRE OR OVER HEATING
end_item_identificationAIRCRAFT
reference_data_and_literatureMEGGITT SAFETY SYSTEM MANUAL 26-10-11
part_name_assigned_by_controlling_agencyMODEL 801DRH FIRE/OVERHEAT DETECTOR
NSN4730-00-595-0083
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 891901 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
399163-184Interchangeable
interchangeable cross-reference
interchangeable
100548-01Interchangeable
interchangeable cross-reference
interchangeable
355-042-002Interchangeable
interchangeable cross-reference
interchangeable
749Interchangeable
interchangeable cross-reference
interchangeable
590-012Interchangeable
interchangeable cross-reference
interchangeable
10450Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 891901?
891901 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 891901?
There are 30 known substitutes for 891901: 399163-184, 100548-01, 355-042-002 and 27 more. Substitute compatibility should be verified for your specific system.
Is 891901 still available?
891901 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