PartsTable
Technical Data Sheet
510156-1 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 0.550 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, thread_class: 3A ALL ENDS A, overall_length: 2.062 INCHES MINIMUM AND 2.169 INCHES MAXIMUM IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-725-5751, 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
510156-1
NSN: 4730-00-725-5751
FSC: 4730
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length0.550 INCHES NOMINAL IN
seat_angle37.0 DEGREES
thread_class3A ALL ENDS A
overall_length2.062 INCHES MINIMUM AND 2.169 INCHES MAXIMUM IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleFLARED ALL ENDS
special_featuresSUPPORTS GRUMMAN A10A AIRCRAFT
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
surface_treatmentANODIZE BODY
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4730-00-725-5751
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 510156-1 · 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
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
THREAD CLASS: 3A ALL ENDS A
SURFACE TREATMENT: ANODIZE BODY
FEATURES PROVIDED: SELF-SEALING
QUICK DISCONNECT METHOD: TWIST-LOCK ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
SEAT ANGLE: 37.0 DEGREES
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SPECIAL FEATURESSUPPORTS GRUMMAN A10A AIRCRAFT
THREAD CLASS3A ALL ENDS A
SURFACE TREATMENTANODIZE BODY
FEATURES PROVIDEDSELF-SEALING
QUICK DISCONNECT METHODTWIST-LOCK ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
SEAT ANGLE37.0 DEGREES
QUICK DISCONNECT NOMINAL SIZE1.000 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORUNF ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
510156Interchangeable
interchangeable cross-reference
interchangeable
510156-01Interchangeable
interchangeable cross-reference
interchangeable
MH1897-1Interchangeable
interchangeable cross-reference
interchangeable
MH1897-3Interchangeable
interchangeable cross-reference
interchangeable
32054Interchangeable
interchangeable cross-reference
interchangeable
5101-56MDInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 510156-1?
510156-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 510156-1?
There are 19 known substitutes for 510156-1: 510156, 510156-01, MH1897-1 and 16 more. Substitute compatibility should be verified for your specific system.
Is 510156-1 still available?
510156-1 is currently cancelled.
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