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50MP — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

50MP: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, leg_length: 0.660 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, overall_length: 2.031 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-580-2138, 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
50MP
NSN: 4730-00-580-2138
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14127 — FOSTER MANUFACTURING CO, INC. DBA FOSTER MANUFACTURING CO (USA)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.660 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
overall_length2.031 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentCADMIUM OR ZINC BODY
nominal_thread_size0.500 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size0.609 INCHES ALL ENDS IN
NSN4730-00-580-2138
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 50MP · 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
•
CONNECTION STYLE: PLAIN ALL ENDS
•
CONNECTION TYPE: EXTERNAL QUICK DISCONNECT ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
QUICK DISCONNECT NOMINAL SIZE: 0.609 INCHES ALL ENDS IN
•
LEG LENGTH: 0.660 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN ALL ENDS
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.031 INCHES NOMINAL IN
QUICK DISCONNECT NOMINAL SIZE0.609 INCHES ALL ENDS IN
LEG LENGTH0.660 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
SURFACE TREATMENTCADMIUM OR ZINC BODY
MATERIALSTEEL BODY
SUBSTITUTES & CROSS-REFERENCES 2
ST-N4MSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
23570Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 50MP?
50MP is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 50MP?
There are 2 known substitutes for 50MP: ST-N4M, 23570. Substitute compatibility should be verified for your specific system.
What is the NSN for 50MP?
50MP is cataloged in the U.S. Government catalog under NSN 4730-00-580-2138. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.