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7035-18-420-2041 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7035-18-420-2041: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, flange_diameter: 9.200 INCHES NOMINAL IN, style_designator: ROUND, TWO BOLT HOLE CIRCLES, end_item_identification: UH-60A HELICOPTER A, inner_bolt_circle_diameter: 2.500 INCHES NOMINAL IN, outer_bolt_circle_diameter: 8.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-307-0533, 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
7035-18-420-2041
NSN: 4730-01-307-0533
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
flange_diameter9.200 INCHES NOMINAL IN
style_designatorROUND, TWO BOLT HOLE CIRCLES
end_item_identificationUH-60A HELICOPTER A
inner_bolt_circle_diameter2.500 INCHES NOMINAL IN
outer_bolt_circle_diameter8.250 INCHES NOMINAL IN
inner_bolt_circle_hole_diameter0.313 INCHES NOMINAL IN
inner_bolt_circle_hole_quantity4
outer_bolt_circle_hole_diameter0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
outer_bolt_circle_hole_quantity6
material_document_and_classificationQQ-A-200-8 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-250-11 FED SPEC 2ND MATERIAL RESPONSE
tube_outside_diameter_for_which_designed2.625 INCHES MINIMUM AND 2.631 INCHES MAXIMUM IN
NSN4730-01-307-0533
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7035-18-420-2041 · 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
•
FLANGE DIAMETER: 9.200 INCHES NOMINAL IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.625 INCHES MINIMUM AND 2.631 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND, TWO BOLT HOLE CIRCLES
•
OUTER BOLT CIRCLE HOLE DIAMETER: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200-8 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-250-11 FED SPEC 2ND MATERIAL RESPONSE
•
INNER BOLT CIRCLE HOLE DIAMETER: 0.313 INCHES NOMINAL IN
•
OUTER BOLT CIRCLE HOLE QUANTITY: 6
•
INNER BOLT CIRCLE DIAMETER: 2.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER9.200 INCHES NOMINAL IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.625 INCHES MINIMUM AND 2.631 INCHES MAXIMUM IN
STYLE DESIGNATORROUND, TWO BOLT HOLE CIRCLES
OUTER BOLT CIRCLE HOLE DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200-8 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-250-11 FED SPEC 2ND MATERIAL RESPONSE
INNER BOLT CIRCLE HOLE DIAMETER0.313 INCHES NOMINAL IN
OUTER BOLT CIRCLE HOLE QUANTITY6
INNER BOLT CIRCLE DIAMETER2.500 INCHES NOMINAL IN
END ITEM IDENTIFICATIONUH-60A HELICOPTER A
MATERIALALUMINUM ALLOY
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: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 7035-18-420-2041?
7035-18-420-2041 is a FLANGE,PIPE.
What is the NSN for 7035-18-420-2041?
7035-18-420-2041 is cataloged in the U.S. Government catalog under NSN 4730-01-307-0533. 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.