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RCSK16885-4 ✓ 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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC GASKET, connection_type: UNTHREADED EXTERNAL TUBE ALL ENDS, connection_style: GROOVED (TUBE) SECOND END, end_item_identification: 2320-01-383-3850, material_document_and_classification: MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE GASKET, nominal_outside_diameter_tube_accommodated: 0.313 INCHES SECOND END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-412-1675, 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
RCSK16885-4
NSN: 4730-01-412-1675
FSC: 4730
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC GASKET
connection_typeUNTHREADED EXTERNAL TUBE ALL ENDS
connection_styleGROOVED (TUBE) SECOND END
end_item_identification2320-01-383-3850
material_document_and_classificationMIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE GASKET
nominal_outside_diameter_tube_accommodated0.313 INCHES SECOND END IN
NSN4730-01-412-1675
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: RCSK16885-4 · 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
•
MATERIAL: RUBBER SYNTHETIC GASKET
•
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.313 INCHES SECOND END IN
•
CONNECTION STYLE: GROOVED (TUBE) SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE GASKET
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC GASKET
CONNECTION TYPEUNTHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.313 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
CONNECTION STYLEGROOVED (TUBE) SECOND END
CONNECTION STYLEPLAIN (TUBE) FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE GASKET
END ITEM IDENTIFICATION2320-01-383-3850
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
895-8DInterchangeable
interchangeable cross-reference
interchangeable
AS4861-01Interchangeable
interchangeable cross-reference
interchangeable
444024Interchangeable
interchangeable cross-reference
interchangeable
11085Interchangeable
interchangeable cross-reference
interchangeable
C1-8Interchangeable
interchangeable cross-reference
interchangeable
11-036Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RCSK16885-4?
RCSK16885-4 is a REDUCER,TUBE.
What parts can replace RCSK16885-4?
There are 13 known substitutes for RCSK16885-4: 895-8D, AS4861-01, 444024 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RCSK16885-4?
RCSK16885-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-412-1675. 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