PartsTable
Technical Data Sheet
2989-1 ✓ 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,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 377 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.781 INCHES NOMINAL SECOND END IN, seat_angle: 37.0 DEGREES FIRST END, power_rating: 500.0 MILLIWATTS AVERAGE, thread_class: 3A FIRST END A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-1032, 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
2989-1
NSN: 4730-00-287-1032
FSC: 4730
CAGE: 0KDP7 — KIDDE-FENWAL, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 377 OVERALL
flow_angle90.0 DEGREES
leg_length0.781 INCHES NOMINAL SECOND END IN
seat_angle37.0 DEGREES FIRST END
power_rating500.0 MILLIWATTS AVERAGE
thread_class3A FIRST END A
body_diameter2.250 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST END
frequency_range0.000 KILOHERTZ MINIMUM AND 20.000 KILOHERTZ MAXIMUM
connection_styleFLARED (TUBE) FIRST END
special_featuresUPGRADE
surface_treatmentCADMIUM OVERALL
NSN4730-00-287-1032
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2989-1 · 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
THREAD CLASS: 3A FIRST END A
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COMP 21 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE: 37.0 DEGREES FIRST END
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
THREAD QUANTITY PER INCH: 27 SECOND END
THREAD SERIES DESIGNATOR: ANPT SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A FIRST END A
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 21 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEAT ANGLE37.0 DEGREES FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
THREAD QUANTITY PER INCH27 SECOND END
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
THREAD SERIES DESIGNATORANPT SECOND END
FLOW ANGLE90.0 DEGREES
LEG LENGTH0.891 INCHES NOMINAL FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
316-320PC4Interchangeable
interchangeable cross-reference
interchangeable
ASA-50X72 LINKSInterchangeable
interchangeable cross-reference
interchangeable
278LTEInterchangeable
interchangeable cross-reference
interchangeable
24461-6Interchangeable
interchangeable cross-reference
interchangeable
300036-2Interchangeable
interchangeable cross-reference
interchangeable
6NBC914YZPInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2989-1?
2989-1 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace 2989-1?
There are 29 known substitutes for 2989-1: 316-320PC4, ASA-50X72 LINKS, 278LTE and 26 more. Substitute compatibility should be verified for your specific system.
Is 2989-1 still available?
2989-1 is currently cancelled.
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