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Technical Data Sheet
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273347 ✓ 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 HOUSING,SEAL,TANK OIL is a the manufacturer industrial component. Key specifications include end_item_identification: J-57 AIRCRAFT ENGINE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-6230, 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
273347
NSN: 4730-00-289-6230
FSC: 4730
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
end_item_identificationJ-57 AIRCRAFT ENGINE
NSN4730-00-289-6230
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 273347 · 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
•
SHANK LENGTH: 1.266 INCHES NOMINAL IN
•
SCREW THREAD SERIES DESIGNATOR: NPT
•
THREAD QUANTITY PER INCH: 27
•
HEIGHT: 1.750 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.125 INCHES IN
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SHANK LENGTH1.266 INCHES NOMINAL IN
SCREW THREAD SERIES DESIGNATORNPT
THREAD QUANTITY PER INCH27
HEIGHT1.750 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.125 INCHES IN
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
SPECIAL FEATURES0.312 IN. NOM THD LG,AND SUR FACE LOCATED BALL CHECK VALVE IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORSTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
C600012901Interchangeable
interchangeable cross-reference
interchangeable
R925-20Interchangeable
interchangeable cross-reference
interchangeable
2222-20Interchangeable
interchangeable cross-reference
interchangeable
GG-S-161/2Interchangeable
interchangeable cross-reference
interchangeable
1669BInterchangeable
interchangeable cross-reference
interchangeable
273347Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 273347?
273347 is a HOUSING,SEAL,TANK OIL.
What parts can replace 273347?
There are 25 known substitutes for 273347: C600012901, R925-20, 2222-20 and 22 more. Substitute compatibility should be verified for your specific system.
Is 273347 still available?
273347 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