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ST57D145 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ST57D145: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include end_item_identification: NHA: ENGINE,TIER II DIESEL H120XM, part_name_assigned_by_controlling_agency: FUEL PUMP. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-241-4650, 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
ST57D145
NSN: 4730-01-241-4650
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
end_item_identificationNHA: ENGINE,TIER II DIESEL H120XM
part_name_assigned_by_controlling_agencyFUEL PUMP
NSN4730-01-241-4650
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST57D145 · 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
SUBSTITUTES & CROSS-REFERENCES 5
ST57D145-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
2266-16-16SSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1551260Reference document
Same NSN cross-reference
Reference document — Secondary reference
5122709-048-103Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
266-16-16SReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST57D145?
ST57D145 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace ST57D145?
There are 5 known substitutes for ST57D145: ST57D145-1, 2266-16-16S, 1551260 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST57D145?
ST57D145 is cataloged in the U.S. Government catalog under NSN 4730-01-241-4650. 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.