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1L5987 — COUPLING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1L5987: COUPLING,PIPE.

The COUPLING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 30.0 DEGREES FIRST END, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, style_designator: THREADED EXTERNAL RIGID, THREADED INTERNAL SWIVEL, nominal_thread_size: 1.000 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-285-6182, 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
1L5987
NSN: 4730-01-285-6182
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle30.0 DEGREES FIRST END
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
style_designatorTHREADED EXTERNAL RIGID, THREADED INTERNAL SWIVEL
nominal_thread_size1.000 INCHES ALL ENDS IN
nominal_overall_length1.970 INCHES IN
end_item_identificationGAS ENGINE D342; LOGISTICS SUPPORT VESSEL
thread_series_designatorNPTF SECOND END
NSN4730-01-285-6182
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1L5987 · 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: SWIVEL NUT INVERTED FLARE (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 1.970 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
STYLE DESIGNATOR: THREADED EXTERNAL RIGID, THREADED INTERNAL SWIVEL
•
NOMINAL THREAD SIZE: 1.000 INCHES ALL ENDS IN
•
SEAT ANGLE: 30.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS
CONNECTION STYLESWIVEL NUT INVERTED FLARE (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH1.970 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
STYLE DESIGNATORTHREADED EXTERNAL RIGID, THREADED INTERNAL SWIVEL
NOMINAL THREAD SIZE1.000 INCHES ALL ENDS IN
SEAT ANGLE30.0 DEGREES FIRST END
END ITEM IDENTIFICATIONGAS ENGINE D342; LOGISTICS SUPPORT VESSEL
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
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 1L5987?
1L5987 is a COUPLING,PIPE.
What is the NSN for 1L5987?
1L5987 is cataloged in the U.S. Government catalog under NSN 4730-01-285-6182. This indicates validated use in U.S. government and defense supply chains.
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