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PartsTable / COMPONENT / 33-3375-500-040
33-3375-500-040 ✓ 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

COUPLING ASSEMBLY,QUICK DISCONNE. Key specifications include material: STEEL OVERALL, connection_type: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION, connection_style: BARBED OR SERRATED END FIRST FLUID END CONNECTION, style_designator: COUPLING ASSEMBLY, features_provided: SELF-SEALING, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-9462, 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
33-3375-500-040
NSN: 4730-00-203-9462
FSC: 4730
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
connection_styleBARBED OR SERRATED END FIRST FLUID END CONNECTION
style_designatorCOUPLING ASSEMBLY
features_providedSELF-SEALING
surface_treatmentCADMIUM OVERALL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
quick_disconnect_methodSPRING PUSH-PULL ALL ENDS
nondefinitive_spec/std_data2 TYPE
specification/standard_data81349-MIL-C-4109 GOVERNMENT SPECIFICATION
nominal_inside_diameter_hose_accommodated0.375 INCHES FIRST FLUID END CONNECTION IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-203-9462
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 33-3375-500-040 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: COUPLING ASSEMBLY
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.375 INCHES FIRST FLUID END CONNECTION IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-C-4109 GOVERNMENT SPECIFICATION
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALSTEEL OVERALL
STYLE DESIGNATORCOUPLING ASSEMBLY
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.375 INCHES FIRST FLUID END CONNECTION IN
SPECIFICATION/STANDARD DATA81349-MIL-C-4109 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA2 TYPE
SURFACE TREATMENTCADMIUM OVERALL
FEATURES PROVIDEDSELF-SEALING
CONNECTION STYLEBARBED OR SERRATED END FIRST FLUID END CONNECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
QQ-B-575Interchangeable
interchangeable cross-reference
interchangeable
087-013103-014Interchangeable
interchangeable cross-reference
interchangeable
A-A-59569Interchangeable
interchangeable cross-reference
interchangeable
J3126Interchangeable
interchangeable cross-reference
interchangeable
B107.100Interchangeable
interchangeable cross-reference
interchangeable
B107.100 CAT 39 TY2CL3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 33-3375-500-040?
33-3375-500-040 is a COUPLING ASSEMBLY,QUICK DISCONNE.
What parts can replace 33-3375-500-040?
There are 18 known substitutes for 33-3375-500-040: QQ-B-575, 087-013103-014, A-A-59569 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 33-3375-500-040?
33-3375-500-040 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-203-9462. 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