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Technical Data Sheet
12873193 ✓ 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: COPPER ALLOY OVERALL, flow_angle: 45.0 DEGREES, leg_length: 0.750 INCHES NOMINAL FIRST END IN, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: PLAIN (PIPE) SECOND END, nominal_thread_size: 0.250 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-835-3003, 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
12873193
NSN: 4730-00-835-3003
FSC: 4730
CAGE: 81381 — STEWART & STEVENSON POWER PRODUCTS LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flow_angle45.0 DEGREES
leg_length0.750 INCHES NOMINAL FIRST END IN
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.250 INCHES SECOND END IN
thread_series_designatorNPTF ALL ENDS
nondefinitive_spec/std_data9 FIGURE
specification/standard_data81343-J530 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_outside_diameter_tube_accommodated0.312 INCHES FIRST END IN
NSN4730-00-835-3003
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12873193 · 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
SPECIFICATION/STANDARD DATA: 96906-MS51504 GOVERNMENT STANDARD
SEAT ANGLE: 37.0 DEGREES FIRST END
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT AND 1 FLARED SLEEVE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
SURFACE TREATMENT: CADMIUM OVERALL
MATERIAL: STEEL COMP 12L14 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CRITICALITY CODE JUSTIFICATION: FEAT
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA96906-MS51504 GOVERNMENT STANDARD
SEAT ANGLE37.0 DEGREES FIRST END
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT AND 1 FLARED SLEEVE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 12L14 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CRITICALITY CODE JUSTIFICATIONFEAT
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
6-6-37-6Interchangeable
interchangeable cross-reference
interchangeable
20354FXInterchangeable
interchangeable cross-reference
interchangeable
2024-6-6Interchangeable
interchangeable cross-reference
interchangeable
7735522Interchangeable
interchangeable cross-reference
interchangeable
2181053Interchangeable
interchangeable cross-reference
interchangeable
SAE J530 12-12 130339BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12873193?
12873193 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 12873193?
There are 15 known substitutes for 12873193: 6-6-37-6, 20354FX, 2024-6-6 and 12 more. Substitute compatibility should be verified for your specific system.
Is 12873193 still available?
12873193 is currently cancelled.
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