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581438 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

581438: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, thread_class: 3A ALL ENDS A, exterior_color: BLACK, overall_length: 3.220 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION, connection_style: DOUBLE THREADED SECTION BOSS FITTING GASKET W/LOCKNUT SEALING ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4710-00-240-8951, 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
581438
NSN: 4710-00-240-8951
NIINs: 002408951, 013669403, 013669404, 013669407
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 49185 — TEREX AMERICAN CRANE CORP (USA)
SPECIFICATIONS
materialSTEEL BODY
thread_class3A ALL ENDS A
exterior_colorBLACK
overall_length3.220 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
connection_styleDOUBLE THREADED SECTION BOSS FITTING GASKET W/LOCKNUT SEALING ALL ENDS
special_featuresBULKHEAD ON FLUID END
style_designatorMALE COUPLING HALF
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
nominal_thread_size0.438 INCHES ALL ENDS IN
maximum_operating_temp250.0 FAHRENHEIT DEGF
end_item_identification3655-00-722-3901
NSN4710-00-240-8951
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 581438 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAT ANGLE IN DEG: 37.000 ALL ENDS
•
DESIGN FORM: PREBENT
•
MATING END QUANTITY: 2 ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI C1010 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE TUBING
•
WALL THICKNESS: 0.049 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
END CONNECTION STYLE: FLARE ALL ENDS
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG37.000 ALL ENDS
DESIGN FORMPREBENT
MATING END QUANTITY2 ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONAISI C1010 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE TUBING
WALL THICKNESS0.049 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
END CONNECTION STYLEFLARE ALL ENDS
TUBE OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
THREAD CLASS2B ALL ENDS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 581438?
581438 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for 581438?
581438 is cataloged in the U.S. Government catalog under NSN 4710-00-240-8951. This indicates validated use in U.S. government and defense supply chains.
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