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PartsTable / COMPONENT / E3373 PIECE 71B
E3373 PIECE 71B ✓ 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 HOUSING,VALVE ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.875 INCHES NOMINAL IN, neck_height: 0.250 INCHES NOMINAL IN, socket_depth: 0.750 INCHES NOMINAL IN, flange_diameter: 7.000 INCHES NOMINAL IN, socket_diameter: 2.938 INCHES NOMINAL 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 4730-01-186-8701, 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
E3373 PIECE 71B
NSN: 4730-01-186-8701
FSC: 4730
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialSTEEL
thickness0.875 INCHES NOMINAL IN
neck_height0.250 INCHES NOMINAL IN
socket_depth0.750 INCHES NOMINAL IN
flange_diameter7.000 INCHES NOMINAL IN
socket_diameter2.938 INCHES NOMINAL IN
special_featuresFLANGES CONFORM TO ASA STANDARD B16.5
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.625 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter5.500 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, SOCKET NECK
NSN4730-01-186-8701
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: E3373 PIECE 71B · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
E-3373Interchangeable
interchangeable cross-reference
interchangeable
M18180/3-03A01Interchangeable
interchangeable cross-reference
interchangeable
653206Interchangeable
interchangeable cross-reference
interchangeable
B16-5-1953TABLE21Interchangeable
interchangeable cross-reference
interchangeable
653204Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E3373 PIECE 71B?
E3373 PIECE 71B is a HOUSING,VALVE ASSEMBLY.
What parts can replace E3373 PIECE 71B?
There are 22 known substitutes for E3373 PIECE 71B: E-3373, M18180/3-03A01, 653206 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E3373 PIECE 71B?
E3373 PIECE 71B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-186-8701. 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