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R251D13 — SWING JOINT,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

R251D13: SWING JOINT,PIPE.

The SWING JOINT,PIPE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, leg_length: 2.625 INCHES NOMINAL SECOND END IN, bearing_type: ANNULAR BALL, REMOVABLE, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: DOUBLE JOINT. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-434-4963, 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
R251D13
NSN: 4730-00-434-4963
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 71454 — FMC TECHNOLOGIES INC DBA FMC FLUID CONTROL (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
leg_length2.625 INCHES NOMINAL SECOND END IN
bearing_typeANNULAR BALL, REMOVABLE
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorDOUBLE JOINT
unable_to_decodeUNABLE TO DECODE
operating_pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.500 INCHES FIRST END IN
thread_series_designatorNPT ALL ENDS
NSN4730-00-434-4963
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: R251D13 · 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 (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: DOUBLE JOINT
•
OPERATING PRESSURE: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
LEG LENGTH: 2.625 INCHES NOMINAL FIRST END IN
•
NOMINAL THREAD SIZE: 0.375 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORDOUBLE JOINT
OPERATING PRESSURE1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH2.625 INCHES NOMINAL FIRST END IN
LEG LENGTH2.625 INCHES NOMINAL SECOND END IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
BEARING TYPEANNULAR BALL, REMOVABLE
UNABLE TO DECODEUNABLE TO DECODE
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 R251D13?
R251D13 is a SWING JOINT,PIPE.
What is the NSN for R251D13?
R251D13 is cataloged in the U.S. Government catalog under NSN 4730-00-434-4963. 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.