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Technical Data Sheet
PartsTable / COMPONENT / 1015-4 BN
1015-4 BN ✓ 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 EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include joint_type: SINGLE, design_type: SPOOL, overall_length: 6.000 INCHES NOMINAL IN, special_features: BUTYL RUBBER WITH NEOPRENE COVER, bolt_hole_diameter: 0.750 INCHES NOMINAL IN, end_connection_type: FLANGED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-277-7699, 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
1015-4 BN
NSN: 4730-01-277-7699
FSC: 4730
CAGE: 02378 — GENERAL RUBBER LLC DBA GENERAL RUBBER CORP (USA)
SPECIFICATIONS
joint_typeSINGLE
design_typeSPOOL
overall_length6.000 INCHES NOMINAL IN
special_featuresBUTYL RUBBER WITH NEOPRENE COVER
bolt_hole_diameter0.750 INCHES NOMINAL IN
bolt_hole_quantity8
end_connection_typeFLANGED
bolt_circle_diameter7.500 INCHES NOMINAL IN
flange_outside_diameter9.000 INCHES NOMINAL IN
traverse_maximum_length0.750 INCHES IN
working_pressure_rating250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
nominal_pipe_size_designation4.000 INCHES IN
NSN4730-01-277-7699
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1015-4 BN · 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
•
BOLT HOLE QUANTITY: 8
•
BOLT CIRCLE DIAMETER: 7.500 INCHES NOMINAL IN
•
BOLT HOLE DIAMETER: 0.750 INCHES NOMINAL IN
•
DESIGN TYPE: SPOOL
•
FLANGE OUTSIDE DIAMETER: 9.000 INCHES NOMINAL IN
•
WORKING PRESSURE RATING: 250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE QUANTITY8
BOLT CIRCLE DIAMETER7.500 INCHES NOMINAL IN
SPECIAL FEATURESBUTYL RUBBER WITH NEOPRENE COVER
BOLT HOLE DIAMETER0.750 INCHES NOMINAL IN
DESIGN TYPESPOOL
OVERALL LENGTH6.000 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER9.000 INCHES NOMINAL IN
WORKING PRESSURE RATING250.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
TRAVERSE MAXIMUM LENGTH0.750 INCHES IN
NOMINAL PIPE SIZE DESIGNATION4.000 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
RA12N0N451SInterchangeable
interchangeable cross-reference
interchangeable
10-91Interchangeable
interchangeable cross-reference
interchangeable
191-667Interchangeable
interchangeable cross-reference
interchangeable
D15-739XPC380Interchangeable
interchangeable cross-reference
interchangeable
D15-739ZPC380Interchangeable
interchangeable cross-reference
interchangeable
D15-648KPC380Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1015-4 BN?
1015-4 BN is a EXPANSION JOINT,PIPE.
What parts can replace 1015-4 BN?
There are 14 known substitutes for 1015-4 BN: RA12N0N451S, 10-91, 191-667 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1015-4 BN?
1015-4 BN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-277-7699. 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