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SP12541 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SP12541: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 3B ALL ENDS, connection_type: THREADED INTERNAL TUBE ALL ENDS, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS, style_designator: RIGID, LONG CENTER WRENCHING FACILITY. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-640-0848, 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
SP12541
NSN: 4730-00-640-0848
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle37.0 DEGREES ALL ENDS
thread_class3B ALL ENDS
connection_typeTHREADED INTERNAL TUBE ALL ENDS
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS
style_designatorRIGID, LONG CENTER WRENCHING FACILITY
nominal_thread_size0.625 INCHES ALL ENDS IN
nominal_overall_length1.250 INCHES IN
thread_quantity_per_inch20 ALL ENDS
thread_series_designatorUN ALL ENDS
nominal_outside_diameter_tube_accommodated0.250 INCHES ALL ENDS IN
NSN4730-00-640-0848
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SP12541 · 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, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.250 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: RIGID, LONG CENTER WRENCHING FACILITY
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.625 INCHES ALL ENDS IN
•
SEAT ANGLE: 37.0 DEGREES ALL ENDS
•
THREAD CLASS: 3B ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS
NOMINAL OVERALL LENGTH1.250 INCHES IN
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATORRIGID, LONG CENTER WRENCHING FACILITY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
NOMINAL THREAD SIZE0.625 INCHES ALL ENDS IN
SEAT ANGLE37.0 DEGREES ALL ENDS
THREAD CLASS3B ALL ENDS
THREAD QUANTITY PER INCH20 ALL ENDS
MATERIALCOPPER ALLOY 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 SP12541?
SP12541 is a COUPLING,TUBE.
What is the NSN for SP12541?
SP12541 is cataloged in the U.S. Government catalog under NSN 4730-00-640-0848. 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.