PartsTable
Technical Data Sheet
PartsTable / COMPONENT / BW21-2
BW21-2 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The HOSE ASSEMBLY,METALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 37.0 DEGREES FIRST END, temp_rating: 850.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 2B FIRST END, connection_type: THREADED EXTERNAL PIPE SECOND END, inside_diameter: 0.250 INCHES NOMINAL IN, connection_style: INVERTED FLARE SECOND END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-401-8501, 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
BW21-2
NSN: 4720-00-401-8501
FSC: 4720
CAGE: 70510 — HYSPAN PRECISION PRODUCTS, INC. (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
temp_rating850.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class2B FIRST END
connection_typeTHREADED EXTERNAL PIPE SECOND END
inside_diameter0.250 INCHES NOMINAL IN
connection_styleINVERTED FLARE SECOND END
outside_diameter0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND SECOND END
operating_pressure956.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure4500.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.250 INCHES SECOND END IN
end_connection_designSTRAIGHT SECOND END
NSN4720-00-401-8501
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: BW21-2 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD DIRECTION: RIGHT-HAND SECOND END
•
MEASURING METHOD AND LENGTH: 120.000 INCHES NOMINAL OVERALL IN
•
END CONNECTION DESIGN: STRAIGHT SECOND END
•
NOMINAL THREAD SIZE: 0.625 INCHES FIRST END IN
•
HYDROSTATIC TEST PRESSURE: 2250.0 POUNDS PER SQUARE INCH LBS
•
BURST TEST PRESSURE: 4500.0 POUNDS PER SQUARE INCH LBS
•
THREAD SERIES DESIGNATOR: NPT SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND SECOND END
MEASURING METHOD AND LENGTH120.000 INCHES NOMINAL OVERALL IN
END CONNECTION DESIGNSTRAIGHT SECOND END
NOMINAL THREAD SIZE0.625 INCHES FIRST END IN
HYDROSTATIC TEST PRESSURE2250.0 POUNDS PER SQUARE INCH LBS
BURST TEST PRESSURE4500.0 POUNDS PER SQUARE INCH LBS
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
THREAD SERIES DESIGNATORNPT SECOND END
TEMP RATING850.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
82615-20FTInterchangeable
interchangeable cross-reference
interchangeable
182615-1040Interchangeable
interchangeable cross-reference
interchangeable
BW21-2Interchangeable
interchangeable cross-reference
interchangeable
182615-1010Interchangeable
interchangeable cross-reference
interchangeable
82615-30FTInterchangeable
interchangeable cross-reference
interchangeable
82615-10FTInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy BW21-2?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is BW21-2?
BW21-2 is a HOSE ASSEMBLY,METALLIC.
What parts can replace BW21-2?
There are 6 known substitutes for BW21-2: 82615-20FT, 182615-1040, BW21-2 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BW21-2?
BW21-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-401-8501. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — BW21-2

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026