PartsTable
Technical Data Sheet
PartsTable / COMPONENT / D8953B
D8953B ✓ 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: DOUBLE, design_type: CORRUGATED ELEMENT, overall_length: 26.000 INCHES NOMINAL IN, bolt_hole_diameter: 0.688 INCHES NOMINAL IN, bolt_hole_quantity: 14, 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 4730-00-529-2639, 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
D8953B
NSN: 4730-00-529-2639
FSC: 4730
CAGE: 15168 — CROLL-REYNOLDS ENGINEERING CO. INC. (USA)
SPECIFICATIONS
joint_typeDOUBLE
design_typeCORRUGATED ELEMENT
overall_length26.000 INCHES NOMINAL IN
bolt_hole_diameter0.688 INCHES NOMINAL IN
bolt_hole_quantity14
end_connection_typeFLANGED
bolt_circle_diameter11.063 INCHES NOMINAL IN
traverse_maximum_length0.500 INCHES IN
working_pressure_rating50.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
equalization_characteristicNONEQUALIZING
nondefinitive_spec/std_data3 TYPE AND 2 CLASS
nominal_pipe_size_designation8.000 INCHES IN
NSN4730-00-529-2639
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: D8953B · 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
•
WORKING PRESSURE RATING: 50.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
BOLT HOLE QUANTITY: 14
•
JOINT TYPE: DOUBLE
•
BOLT HOLE DIAMETER: 0.688 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 11.063 INCHES NOMINAL IN
•
NOMINAL PIPE SIZE DESIGNATION: 8.000 INCHES IN
•
END CONNECTION TYPE: FLANGED
•
TRAVERSE MAXIMUM LENGTH: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
WORKING PRESSURE RATING50.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
BOLT HOLE QUANTITY14
JOINT TYPEDOUBLE
BOLT HOLE DIAMETER0.688 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER11.063 INCHES NOMINAL IN
NOMINAL PIPE SIZE DESIGNATION8.000 INCHES IN
END CONNECTION TYPEFLANGED
TRAVERSE MAXIMUM LENGTH0.500 INCHES IN
EQUALIZATION CHARACTERISTICNONEQUALIZING
DESIGN TYPECORRUGATED ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
SM-A-949433-27Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-17813Interchangeable
interchangeable cross-reference
interchangeable
ME20200100001Interchangeable
interchangeable cross-reference
interchangeable
MIL-E-17813Interchangeable
interchangeable cross-reference
interchangeable
D8952BInterchangeable
interchangeable cross-reference
interchangeable
MILE17813TY4CL2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy D8953B?
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 D8953B?
D8953B is a EXPANSION JOINT,PIPE.
What parts can replace D8953B?
There are 7 known substitutes for D8953B: SM-A-949433-27, MIL-DTL-17813, ME20200100001 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D8953B?
D8953B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-529-2639. 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 — D8953B

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