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3053J70 PIECE 1 — EXPANSION JOINT,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3053J70 PIECE 1: EXPANSION JOINT,PIPE.

The EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include overall_length: 17.380 INCHES MINIMUM AND 17.440 INCHES MAXIMUM IN, bolt_hole_diameter: 1.250 INCHES NOMINAL IN, bolt_hole_quantity: 32, end_connection_type: FLANGED, bolt_circle_diameter: 22.760 INCHES NOMINAL IN, flange_outside_diameter: 25.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-084-8552, 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
3053J70 PIECE 1
NSN: 4730-01-084-8552
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
overall_length17.380 INCHES MINIMUM AND 17.440 INCHES MAXIMUM IN
bolt_hole_diameter1.250 INCHES NOMINAL IN
bolt_hole_quantity32
end_connection_typeFLANGED
bolt_circle_diameter22.760 INCHES NOMINAL IN
flange_outside_diameter25.000 INCHES NOMINAL IN
NSN4730-01-084-8552
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3053J70 PIECE 1 · 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
•
END CONNECTION TYPE: FLANGED
•
BOLT HOLE DIAMETER: 1.250 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 32
•
BOLT CIRCLE DIAMETER: 22.760 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 25.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
END CONNECTION TYPEFLANGED
BOLT HOLE DIAMETER1.250 INCHES NOMINAL IN
OVERALL LENGTH17.380 INCHES MINIMUM AND 17.440 INCHES MAXIMUM IN
BOLT HOLE QUANTITY32
BOLT CIRCLE DIAMETER22.760 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER25.000 INCHES NOMINAL IN
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
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3053J70 PIECE 1?
3053J70 PIECE 1 is a EXPANSION JOINT,PIPE.
What is the NSN for 3053J70 PIECE 1?
3053J70 PIECE 1 is cataloged in the U.S. Government catalog under NSN 4730-01-084-8552. 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.