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73839 ITEM 25 — RESISTOR,FIXED,COMPOSITION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

73839 ITEM 25: RESISTOR,FIXED,COMPOSITION.

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, seat_angle: 37.0 DEGREES FIRST END, reducer_type: CONCENTRIC, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-359-6475, 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
73839 ITEM 25
NSN: 4730-01-359-6475
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
seat_angle37.0 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) FIRST END
nominal_thread_size0.500 INCHES FIRST END IN
nominal_overall_length4.625 INCHES IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SECOND END
material_document_and_classificationQQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.313 INCHES FIRST END IN
NSN4730-01-359-6475
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 73839 ITEM 25 · 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 (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 4.625 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.313 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.375 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL OVERALL LENGTH4.625 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CLA FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.313 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES SECOND END IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
NOMINAL THREAD SIZE0.500 INCHES CENTER BULKHEAD IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 1
73839Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 73839 ITEM 25?
73839 ITEM 25 is a RESISTOR,FIXED,COMPOSITION.
What parts can replace 73839 ITEM 25?
There is 1 known substitute for 73839 ITEM 25: 73839. Substitute compatibility should be verified for your specific system.
What is the NSN for 73839 ITEM 25?
73839 ITEM 25 is cataloged in the U.S. Government catalog under NSN 4730-01-359-6475. This indicates validated use in U.S. government and defense supply chains.
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