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B7566.001.130L1 — TAILPIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B7566.001.130L1: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922, seat_type: STRAIGHT FACE, overall_length: 0.812 INCHES NOMINAL IN, flange_thickness: 0.195 INCHES NOMINAL IN, end_connection_type: BRAZED, flange_outside_diameter: 1.063 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-039-1986, 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
B7566.001.130L1
NSN: 4730-01-039-1986
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922
seat_typeSTRAIGHT FACE
overall_length0.812 INCHES NOMINAL IN
flange_thickness0.195 INCHES NOMINAL IN
end_connection_typeBRAZED
flange_outside_diameter1.063 INCHES NOMINAL IN
nominal_pipe_size_designation0.250 INCHES IN
criticality_code_justificationZZZY
working_pressure_and_service_type1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS AND 1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL LBS
reference_number_differentiating_characteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
NSN4730-01-039-1986
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B7566.001.130L1 · 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
•
NOMINAL PIPE SIZE DESIGNATION: 0.250 INCHES IN
•
FLANGE THICKNESS: 0.195 INCHES NOMINAL IN
•
END CONNECTION TYPE: BRAZED
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
SEAT TYPE: STRAIGHT FACE
•
MATERIAL: COPPER ALLOY 922
•
FLANGE OUTSIDE DIAMETER: 1.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE DESIGNATION0.250 INCHES IN
FLANGE THICKNESS0.195 INCHES NOMINAL IN
END CONNECTION TYPEBRAZED
CRITICALITY CODE JUSTIFICATIONZZZY
OVERALL LENGTH0.812 INCHES NOMINAL IN
SEAT TYPESTRAIGHT FACE
MATERIALCOPPER ALLOY 922
FLANGE OUTSIDE DIAMETER1.063 INCHES NOMINAL IN
WORKING PRESSURE AND SERVICE TYPE1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS AND 1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL LBS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
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 7
B7566.001.130Reference document
Same NSN cross-reference
Reference document — Secondary reference
803-1385946,PC 3,1/4 NPSReference document
Same NSN cross-reference
Reference document — Design control — primary reference
810-1385946PC3-1/4IN-SL-BRZReference document
Same NSN cross-reference
Reference document — Secondary reference
20257 FIND 31Reference document
Same NSN cross-reference
Reference document — Secondary reference
803-1385946,PC 3,1/4 NPS L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
20257 FIND 31L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B7566.001.130L1?
B7566.001.130L1 is a TAILPIECE,UNION.
What parts can replace B7566.001.130L1?
There are 7 known substitutes for B7566.001.130L1: B7566.001.130, 803-1385946,PC 3,1/4 NPS, 810-1385946PC3-1/4IN-SL-BRZ and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B7566.001.130L1?
B7566.001.130L1 is cataloged in the U.S. Government catalog under NSN 4730-01-039-1986. 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.