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Technical Data Sheet
PartsTable / COMPONENT / J1508 ST FEO, GRP1, SZ 28, TY 4
J1508 ST FEO, GRP1, SZ 28, TY 4 ✓ 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 J1508 ST FEO, GRP1, SZ 28, TY 4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-241-6594, 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
J1508 ST FEO, GRP1, SZ 28, TY 4
NSN: 4730-01-241-6594
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
Part NumberJ1508 ST FEO, GRP1, SZ 28, TY 4
NSN4730-01-241-6594
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J1508 ST FEO, GRP1, SZ 28, TY 4 · 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
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: WIRE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: ELRN
•
INSIDE DIAMETER: 1.328 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORWIRE
MATERIALSTEEL CORROSION RESISTING OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSELRN
OVERALL WIDTH0.500 INCHES NOMINAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL; THIS NSN IS NOT A DUPE OF 4730-01-527-8723. HD REQUIRES EXTENDED BAND DESIGN OF THIS NSN
INSIDE DIAMETER1.328 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONB-2 BOMBER (ATB), C-2A REPROCURED, SOF AC-130H, MC-130H, EC-130E, HC-130 AIRCRAFT. HH-53 H PAVE LOW HELICOPTER. TICONDEROGA CLASS CG (47), ARLE A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
STBC10GG74-91Interchangeable
interchangeable cross-reference
interchangeable
STBC10GGInterchangeable
interchangeable cross-reference
interchangeable
AN737TW22Interchangeable
interchangeable cross-reference
interchangeable
WWD22Interchangeable
interchangeable cross-reference
interchangeable
AN737TM22Interchangeable
interchangeable cross-reference
interchangeable
12423Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J1508 ST FEO, GRP1, SZ 28, TY 4?
J1508 ST FEO, GRP1, SZ 28, TY 4 is a J1508 ST FEO, GRP1, SZ 28, TY 4.
What parts can replace J1508 ST FEO, GRP1, SZ 28, TY 4?
There are 28 known substitutes for J1508 ST FEO, GRP1, SZ 28, TY 4: STBC10GG74-91, STBC10GG, AN737TW22 and 25 more. Substitute compatibility should be verified for your specific system.
Is J1508 ST FEO, GRP1, SZ 28, TY 4 still available?
J1508 ST FEO, GRP1, SZ 28, TY 4 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