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Technical Data Sheet
PartsTable / COMPONENT / H655-1502-F24
H655-1502-F24 ✓ 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 RESTRICTOR UNIT,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 BODY, design_type: STRAIGHT, orifice_diameter: 0.0595 INCHES NOMINAL IN, end_connection_type: ANY ACCEPTABLE LOCATION NOT OTHERWISE SPECIFIED, end_item_identification: REVERSE OSMOSIS UNIT PORT; WSD LOS ANGELES CLASSSSN 688, end_connection_similarity: IDENTICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-501-5019, 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
H655-1502-F24
NSN: 4730-01-501-5019
FSC: 4730
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 BODY
design_typeSTRAIGHT
orifice_diameter0.0595 INCHES NOMINAL IN
special_featuresWORKING PRESSURE 5100 PSI; ASSEMBLY INCLUDES NUT, NICU, QQ-N-281, PC. NO56A, 1PC.; ORIFICE, NICU, QQ-N-281, PC. NO 11A; O-RING, RUBBER, MIL-G-23652 TYPE 11, 1PC.; 0.250 IPS A
end_connection_typeANY ACCEPTABLE LOCATION NOT OTHERWISE SPECIFIED
end_item_identificationREVERSE OSMOSIS UNIT PORT; WSD LOS ANGELES CLASSSSN 688
end_connection_similarityIDENTICAL
material_document_and_classificationQQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
part_name_assigned_by_controlling_agencyORIFICE FTG & SND ATTENUATOR
NSN4730-01-501-5019
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: H655-1502-F24 · 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
•
ORIFICE DIAMETER: 0.0595 INCHES NOMINAL IN
•
DESIGN TYPE: STRAIGHT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
•
END CONNECTION SIMILARITY: IDENTICAL
•
END CONNECTION TYPE: ANY ACCEPTABLE LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
ORIFICE DIAMETER0.0595 INCHES NOMINAL IN
END ITEM IDENTIFICATIONREVERSE OSMOSIS UNIT PORT; WSD LOS ANGELES CLASSSSN 688
DESIGN TYPESTRAIGHT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
SPECIAL FEATURESWORKING PRESSURE 5100 PSI; ASSEMBLY INCLUDES NUT, NICU, QQ-N-281, PC. NO56A, 1PC.; ORIFICE, NICU, QQ-N-281, PC. NO 11A; O-RING, RUBBER, MIL-G-23652 TYPE 11, 1PC.; 0.250 IPS A
END CONNECTION SIMILARITYIDENTICAL
END CONNECTION TYPEANY ACCEPTABLE LOCATION NOT OTHERWISE SPECIFIED
PART NAME ASSIGNED BY CONTROLLING AGENCYORIFICE FTG & SND ATTENUATOR
MATERIALNICKEL ALLOY 400 BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
H655-1502-F7Interchangeable
interchangeable cross-reference
interchangeable
531-6985695-F7Interchangeable
interchangeable cross-reference
interchangeable
2621-561-02 PC-142Interchangeable
interchangeable cross-reference
interchangeable
531-6985694-F23Interchangeable
interchangeable cross-reference
interchangeable
H655-1502-F23Interchangeable
interchangeable cross-reference
interchangeable
531-6985694Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H655-1502-F24?
H655-1502-F24 is a RESTRICTOR UNIT,FLUID FLOW.
What parts can replace H655-1502-F24?
There are 25 known substitutes for H655-1502-F24: H655-1502-F7, 531-6985695-F7, 2621-561-02 PC-142 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H655-1502-F24?
H655-1502-F24 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-501-5019. 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