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6641060PC120 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6641060PC120: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER AND NICKEL ALLOY, thickness: 2.000 INCHES NOMINAL IN, socket_depth: 1.030 INCHES NOMINAL IN, flange_diameter: 10.000 INCHES NOMINAL IN, recess_diameter: 5.200 INCHES NOMINAL IN, special_features: 4 RECESSED HOLES FOR 3 INCH NPS SIDE; SOCKET FOR 5 INCH NPS; SMOOTH FACE TO 125 RA MINIMUM; TEST IAW MIL-STD-271 IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-535-6504, 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
6641060PC120
NSN: 4730-01-535-6504
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER AND NICKEL ALLOY
thickness2.000 INCHES NOMINAL IN
socket_depth1.030 INCHES NOMINAL IN
flange_diameter10.000 INCHES NOMINAL IN
recess_diameter5.200 INCHES NOMINAL IN
special_features4 RECESSED HOLES FOR 3 INCH NPS SIDE; SOCKET FOR 5 INCH NPS; SMOOTH FACE TO 125 RA MINIMUM; TEST IAW MIL-STD-271 IN
style_designatorROUND, TWO BOLT HOLE CIRCLES
flange_section_stylePLAIN FACE, SOCKET NECK
end_item_identificationVALVES
inner_bolt_circle_diameter4.250 INCHES NOMINAL IN
outer_bolt_circle_diameter6.625 INCHES NOMINAL IN
face_seating_surface_conditionMACHINED
NSN4730-01-535-6504
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6641060PC120 · 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: 10.000 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 5.000 INCHES IN
•
SOCKET DEPTH: 1.030 INCHES NOMINAL IN
•
FLANGE SECTION STYLE: PLAIN FACE, SOCKET NECK
•
STYLE DESIGNATOR: ROUND, TWO BOLT HOLE CIRCLES
•
OUTER BOLT CIRCLE HOLE DIAMETER: 0.656 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER10.000 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
NOMINAL PIPE SIZE FOR WHICH DESIGNED5.000 INCHES IN
SOCKET DEPTH1.030 INCHES NOMINAL IN
FLANGE SECTION STYLEPLAIN FACE, SOCKET NECK
STYLE DESIGNATORROUND, TWO BOLT HOLE CIRCLES
OUTER BOLT CIRCLE HOLE DIAMETER0.656 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE
INNER BOLT CIRCLE HOLE DIAMETER0.230 INCHES NOMINAL IN
UNTHREADED REDUCER HOLE DIAMETER3.500 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 1
801-6641060PC120Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6641060PC120?
6641060PC120 is a FLANGE,PIPE.
What parts can replace 6641060PC120?
There is 1 known substitute for 6641060PC120: 801-6641060PC120. Substitute compatibility should be verified for your specific system.
What is the NSN for 6641060PC120?
6641060PC120 is cataloged in the U.S. Government catalog under NSN 4730-01-535-6504. 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.