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218-531 — HOUSING,PISTON PUMP

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

218-531: HOUSING,PISTON PUMP.

The HOUSING,PISTON PUMP is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flow_angle: 45.0 DEGREES, leg_length: 0.719 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-291-8463, 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
218-531
NSN: 4730-01-291-8463
NIINs: 012918463, 013784373
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle45.0 DEGREES
leg_length0.719 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleFLARED (TUBE) FIRST END
nominal_thread_size0.438 INCHES FIRST END IN
thread_series_designatorNPTF SECOND END
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-291-8463
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 218-531 · 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
•
FLOW ANGLE: 45.0 DEGREES
•
CONNECTION STYLE: FLARED (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
LEG LENGTH: 0.641 INCHES NOMINAL SECOND END IN
TECHNICAL CHARACTERISTICS
FLOW ANGLE45.0 DEGREES
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
LEG LENGTH0.641 INCHES NOMINAL SECOND END IN
LEG LENGTH0.719 INCHES NOMINAL FIRST END IN
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 218-531?
218-531 is a HOUSING,PISTON PUMP.
What is the NSN for 218-531?
218-531 is cataloged in the U.S. Government catalog under NSN 4730-01-291-8463. This indicates validated use in U.S. government and defense supply chains.
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