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MPB2 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MPB2: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, gear_type: WORM, anode_type: SOLID, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 0.641 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-494-3271, 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
MPB2
NSN: 4730-00-494-3271
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 14233 — HOFMANN ENGINEERING CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
gear_typeWORM
anode_typeSOLID
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length0.641 INCHES NOMINAL IN
design_typeSINGLE REDUCTION
load_rating17.500 POUNDS NOMINAL LBS
total_ratio25 TO 1
body_diameter0.312 INCHES MAXIMUM IN
bore_diameter0.750 INCHES NOMINAL IN
coil_quantity7 1/2
NSN4730-00-494-3271
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MPB2 · 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
SUBSTITUTES & CROSS-REFERENCES 9
161-291Reference document
Same NSN cross-reference
Reference document — Secondary reference
10 MALE PLUGReference document
Same NSN cross-reference
Reference document — Secondary reference
10-3SReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
727BKReference document
Same NSN cross-reference
Reference document — Secondary reference
P341Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
4110404Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MPB2?
MPB2 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace MPB2?
There are 9 known substitutes for MPB2: 161-291, 10 MALE PLUG, 10-3S and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MPB2?
MPB2 is cataloged in the U.S. Government catalog under NSN 4730-00-494-3271. 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.