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Technical Data Sheet
PartsTable / COMPONENT / 300 56 H
300 56 H ✓ 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 CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 BAND, overall_width: 0.560 INCHES MAXIMUM IN, inside_diameter: 3.060 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN, style_designator: WIRE, surface_treatment: PASSIVATE OVERALL, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-406-4671, 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
300 56 H
NSN: 4730-01-406-4671
FSC: 4730
CAGE: 7Z588 — NORMA PENNSYLVANIA INC. DIV BREEZE INDUSTRIAL PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL COMP 302 BAND
overall_width0.560 INCHES MAXIMUM IN
inside_diameter3.060 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN
style_designatorWIRE
surface_treatmentPASSIVATE OVERALL
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
end_item_identificationMARINE GRADE, UNDERGROUND AND OTHER HIGH CORROSIVE APPLICATIONS
surface_treatment_document_and_classificationQQ-P-35,TY I, II OR III FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-406-4671
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 300 56 H · 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
•
MATERIAL: STEEL COMP 305 SCREW
•
STYLE DESIGNATOR: WIRE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TY I, II OR III FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
INSIDE DIAMETER: 3.060 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 305 SCREW
STYLE DESIGNATORWIRE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TY I, II OR III FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL WIDTH0.560 INCHES MAXIMUM IN
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
MATERIALSTEEL COMP 302 BAND
SURFACE TREATMENTPASSIVATE OVERALL
INSIDE DIAMETER3.060 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMARINE GRADE, UNDERGROUND AND OTHER HIGH CORROSIVE APPLICATIONS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1025FX1Interchangeable
interchangeable cross-reference
interchangeable
440592Interchangeable
interchangeable cross-reference
interchangeable
5D470Interchangeable
interchangeable cross-reference
interchangeable
10300992Interchangeable
interchangeable cross-reference
interchangeable
LYC505-08Interchangeable
interchangeable cross-reference
interchangeable
3005-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 300 56 H?
300 56 H is a CLAMP,HOSE.
What parts can replace 300 56 H?
There are 18 known substitutes for 300 56 H: 1025FX1, 440592, 5D470 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 300 56 H?
300 56 H is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-406-4671. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026