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1QM4-2-41A — COUPLING ASSEMBLY,QUICK DISCONNE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1QM4-2-41A: COUPLING ASSEMBLY,QUICK DISCONNE.

COUPLING ASSEMBLY,QUICK DISCONNE. Key specifications include material: ALUMINUM ALLOY OVERALL, leg_length: 0.500 INCHES NOMINAL IN, exterior_color: RED, style_designator: COUPLING ASSEMBLY, surface_treatment: ANODIZE OVERALL, operating_pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-477-7929, 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
1QM4-2-41A
NSN: 4730-01-477-7929
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 24984 — HYDRAFLOW (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
leg_length0.500 INCHES NOMINAL IN
exterior_colorRED
special_featuresO-RING,WIRE,NUT;2 PIN POLARITY,LOW PRESSURE DROP FOR PITOT/STATIC SYSTEMS;SUITABLE FOR LIGHT AND MEDIUM PRESSURES FOR AIR OR FLUID SYSTEMS
style_designatorCOUPLING ASSEMBLY
surface_treatmentANODIZE OVERALL
operating_pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
maximum_operating_temp180.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationAIRCRAFT,STRATOLIFTER C-135;KC 135R RVSM
quick_disconnect_nominal_size0.250 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencyMALE ASSEMBLY SELF-SEALING POPPETED POSITIVE QUICK DISCONNECT
surface_treatment_document_and_classificationMIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-477-7929
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1QM4-2-41A · 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: MIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: COUPLING ASSEMBLY
•
OPERATING PRESSURE: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
QUICK DISCONNECT NOMINAL SIZE: 0.250 INCHES ALL ENDS IN
•
LEG LENGTH: 0.500 INCHES NOMINAL IN
•
EXTERIOR COLOR: RED
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORCOUPLING ASSEMBLY
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
QUICK DISCONNECT NOMINAL SIZE0.250 INCHES ALL ENDS IN
LEG LENGTH0.500 INCHES NOMINAL IN
EXTERIOR COLORRED
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE DEGF
SPECIAL FEATURESO-RING,WIRE,NUT;2 PIN POLARITY,LOW PRESSURE DROP FOR PITOT/STATIC SYSTEMS;SUITABLE FOR LIGHT AND MEDIUM PRESSURES FOR AIR OR FLUID SYSTEMS
SUBSTITUTES & CROSS-REFERENCES 2
AS1708CReference document
Same NSN cross-reference
Reference document — Secondary reference
1QM4Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1QM4-2-41A?
1QM4-2-41A is a COUPLING ASSEMBLY,QUICK DISCONNE.
What parts can replace 1QM4-2-41A?
There are 2 known substitutes for 1QM4-2-41A: AS1708C, 1QM4. Substitute compatibility should be verified for your specific system.
What is the NSN for 1QM4-2-41A?
1QM4-2-41A is cataloged in the U.S. Government catalog under NSN 4730-01-477-7929. This indicates validated use in U.S. government and defense supply chains.
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