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Technical Data Sheet
PartsTable / COMPONENT / 3B7896
3B7896 ✓ 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, body_type: SOLID, head_type: SOLID, core_depth: 0.828 INCHES NOMINAL IN, flow_angle: 90.0 DEGREES, leg_length: 0.820 INCHES NOMINAL ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-5683, 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
3B7896
NSN: 4730-00-277-5683
FSC: 4730
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_typeSOLID
head_typeSOLID
core_depth0.828 INCHES NOMINAL IN
flow_angle90.0 DEGREES
leg_length0.820 INCHES NOMINAL ALL ENDS IN
seat_angle8.5 DEGREES SECOND END
sweep_typeSHORT
reducer_typeCONCENTRIC
thread_class2B ALL ENDS
exterior_colorGOLD OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
NSN4730-00-277-5683
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3B7896 · 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 29
2667003Interchangeable
interchangeable cross-reference
interchangeable
11211Interchangeable
interchangeable cross-reference
interchangeable
0042873Interchangeable
interchangeable cross-reference
interchangeable
0042873-0Interchangeable
interchangeable cross-reference
interchangeable
42873Interchangeable
interchangeable cross-reference
interchangeable
1J5307Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3B7896?
3B7896 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 3B7896?
There are 29 known substitutes for 3B7896: 2667003, 11211, 0042873 and 26 more. Substitute compatibility should be verified for your specific system.
Is 3B7896 still available?
3B7896 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