PartsTable
Technical Data Sheet
17-58-056 ✓ 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 UNION,ROTATING,AIR-HYDRAULIC is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-248-5207, 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
17-58-056
NSN: 4730-01-248-5207
FSC: 4730
CAGE: 85181 — DEUBLIN COMPANY, LLC (USA)
SPECIFICATIONS
Part Number17-58-056
NSN4730-01-248-5207
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 17-58-056 · 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: STEEL HOUSING; ROTOR CONNECTION EXTERNALLY THD; 0.375 NPT IN. THD;TAP CONNECTION INTERNALLY THD 0.250 IN. NPT THD; RIGHT HAND ROTOR; 150 PSI MAX AIR PRESSURE; 3000 PSI MAX HYDRAULIC PRESSURE; 250 DEG F MAX TEMP; 250 RPM MAX SPEED IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL HOUSING; ROTOR CONNECTION EXTERNALLY THD; 0.375 NPT IN. THD;TAP CONNECTION INTERNALLY THD 0.250 IN. NPT THD; RIGHT HAND ROTOR; 150 PSI MAX AIR PRESSURE; 3000 PSI MAX HYDRAULIC PRESSURE; 250 DEG F MAX TEMP; 250 RPM MAX SPEED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
17-058-056Interchangeable
interchangeable cross-reference
interchangeable
17-58Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17-58-056?
17-58-056 is a UNION,ROTATING,AIR-HYDRAULIC.
What parts can replace 17-58-056?
There are 2 known substitutes for 17-58-056: 17-058-056, 17-58. Substitute compatibility should be verified for your specific system.
What is the NSN for 17-58-056?
17-58-056 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-248-5207. This indicates validated use in U.S. government and defense supply chains.
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