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Technical Data Sheet
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R1-745 ✓ 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

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: STEEL CORROSION RESISTING, hinge_pin_type: SECTIONAL STEEL ROCKER, section_length: 18.000 INCHES NOMINAL IN, belt_coupling_type: TOOTHED METAL, belt_thickness_for_which_designed: 0.312 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-362-4356, 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
R1-745
NSN: 4730-00-362-4356
FSC: 4730
CAGE: 14541 — COOPER MACHINERY SERVICES LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
hinge_pin_typeSECTIONAL STEEL ROCKER
section_length18.000 INCHES NOMINAL IN
belt_coupling_typeTOOTHED METAL
belt_thickness_for_which_designed0.312 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
NSN4730-00-362-4356
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R1-745 · 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 5
29407Interchangeable
interchangeable cross-reference
interchangeable
99153Interchangeable
interchangeable cross-reference
interchangeable
R1-2455Interchangeable
interchangeable cross-reference
interchangeable
R1-745Interchangeable
interchangeable cross-reference
interchangeable
SIZEN045-18INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R1-745?
R1-745 is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace R1-745?
There are 5 known substitutes for R1-745: 29407, 99153, R1-2455 and 2 more. Substitute compatibility should be verified for your specific system.
Is R1-745 still available?
R1-745 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