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Technical Data Sheet
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ST2103-04 — CAP ASSEMBLY,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ST2103-04: CAP ASSEMBLY,TUBE.

The CAP ASSEMBLY,TUBE is a the manufacturer industrial component. Key specifications include end_item_identification: ENGINE MODEL F100-PW-100, general_characteristics_item_description: CONSISTS OF CAP PART NO. MS9313-04 AND NUT PART NO.

ST2005-04,FOR 0.250 IN. OD TUBE IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-003-3498, 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
ST2103-04
NSN: 4730-01-003-3498
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationENGINE MODEL F100-PW-100
general_characteristics_item_descriptionCONSISTS OF CAP PART NO. MS9313-04 AND NUT PART NO. ST2005-04,FOR 0.250 IN. OD TUBE IN
NSN4730-01-003-3498
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST2103-04 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF CAP PART NO. MS9313-04 AND NUT PART NO. ST2005-04,FOR 0.250 IN. OD TUBE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF CAP PART NO. MS9313-04 AND NUT PART NO. ST2005-04,FOR 0.250 IN. OD TUBE IN
END ITEM IDENTIFICATIONENGINE MODEL F100-PW-100
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST2103-04?
ST2103-04 is a CAP ASSEMBLY,TUBE.
What is the NSN for ST2103-04?
ST2103-04 is cataloged in the U.S. Government catalog under NSN 4730-01-003-3498. 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.