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R856 ✓ 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 CAP,PIPE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, connection_style: PLAIN (OPTIONAL END), thread_direction: RIGHT-HAND INTERNAL, nominal_thread_size: 2.500 INCHES INTERNAL IN, thread_series_designator: NPT INTERNAL, nominal_pipe_size_for_which_designed: 2.500 INCHES 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 4730-00-426-0987, 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
R856
NSN: 4730-00-426-0987
FSC: 4730
CAGE: 51805 — ROSCO MFG CO (USA)
SPECIFICATIONS
materialIRON OVERALL
connection_stylePLAIN (OPTIONAL END)
thread_directionRIGHT-HAND INTERNAL
nominal_thread_size2.500 INCHES INTERNAL IN
thread_series_designatorNPT INTERNAL
nominal_pipe_size_for_which_designed2.500 INCHES IN
NSN4730-00-426-0987
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R856 · 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: IRON OVERALL
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 2.500 INCHES IN
•
NOMINAL THREAD SIZE: 2.500 INCHES INTERNAL IN
•
CONNECTION STYLE: PLAIN (OPTIONAL END)
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
THREAD SERIES DESIGNATOR: NPT INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON OVERALL
NOMINAL PIPE SIZE FOR WHICH DESIGNED2.500 INCHES IN
NOMINAL THREAD SIZE2.500 INCHES INTERNAL IN
CONNECTION STYLEPLAIN (OPTIONAL END)
THREAD DIRECTIONRIGHT-HAND INTERNAL
THREAD SERIES DESIGNATORNPT INTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
8630-48-19F6Interchangeable
interchangeable cross-reference
interchangeable
NE481936TInterchangeable
interchangeable cross-reference
interchangeable
856Interchangeable
interchangeable cross-reference
interchangeable
10682447-1Interchangeable
interchangeable cross-reference
interchangeable
3469BK4-4Interchangeable
interchangeable cross-reference
interchangeable
705Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R856?
R856 is a CAP,PIPE.
What parts can replace R856?
There are 15 known substitutes for R856: 8630-48-19F6, NE481936T, 856 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R856?
R856 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-426-0987. 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