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Technical Data Sheet
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259345 — CYLINDER,ENGINE STARTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

259345: CYLINDER,ENGINE STARTING.

The CYLINDER,ENGINE STARTING is a the manufacturer industrial component. Key specifications include end_item_identification: MARINE CRANE - MODEL TB10-23, part_name_assigned_by_controlling_agency: MOTOR. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-204-1961, 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
259345
NSN: 4730-00-204-1961
NIINs: 002041961, 013735387, 017170187
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationMARINE CRANE - MODEL TB10-23
part_name_assigned_by_controlling_agencyMOTOR
NSN4730-00-204-1961
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 259345 · 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
•
SEAT ANGLE IN DEG: 37.0
•
STYLE DESIGNATOR: FLARE
•
SLEEVE OUTSIDE DIAMETER: 1.078 INCHES MINIMUM AND 1.081 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
FLANGE WIDTH: 0.332 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 316F
•
FLANGE OUTSIDE DIAMETER: 1.219 INCHES MINIMUM AND 1.222 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG37.0
STYLE DESIGNATORFLARE
OVERALL LENGTH1.406 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER1.078 INCHES MINIMUM AND 1.081 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
FLANGE WIDTH0.332 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN
MATERIALSTEEL COMP 316F
FLANGE OUTSIDE DIAMETER1.219 INCHES MINIMUM AND 1.222 INCHES MAXIMUM IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 259345?
259345 is a CYLINDER,ENGINE STARTING.
What is the NSN for 259345?
259345 is cataloged in the U.S. Government catalog under NSN 4730-00-204-1961. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.