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1P4577 — FLANGE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1P4577: FLANGE,PIPE.

The FLANGE,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.696 INCHES NOMINAL IN, flange_width: 2.320 INCHES NOMINAL IN, socket_depth: 0.293 INCHES NOMINAL IN, flange_length: 2.740 INCHES NOMINAL IN, furnished_items: BOLT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-051-5256, 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
1P4577
NSN: 4730-01-051-5256
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL
thickness0.696 INCHES NOMINAL IN
flange_width2.320 INCHES NOMINAL IN
socket_depth0.293 INCHES NOMINAL IN
flange_length2.740 INCHES NOMINAL IN
furnished_itemsBOLT
recess_diameter1.781 INCHES NOMINAL IN
style_designatorRECTANGULAR, WITH BOLT HOLES
bolt_hole_diameter0.406 INCHES NOMINAL IN
bolt_hole_quantity4
flange_section_stylePLAIN FACE, SOCKET NECK
face_seating_surface_conditionGROUND
NSN4730-01-051-5256
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1P4577 · 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
•
FACE SEATING SURFACE CONDITION: GROUND
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 1.750 INCHES IN
•
SOCKET DEPTH: 0.293 INCHES NOMINAL IN
•
FLANGE SECTION STYLE: PLAIN FACE, SOCKET NECK
•
STYLE DESIGNATOR: RECTANGULAR, WITH BOLT HOLES
•
BOLT HOLE DIAMETER: 0.406 INCHES NOMINAL IN
•
FLANGE LENGTH: 2.740 INCHES NOMINAL IN
•
RECESS DIAMETER: 1.781 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FACE SEATING SURFACE CONDITIONGROUND
NOMINAL PIPE SIZE FOR WHICH DESIGNED1.750 INCHES IN
SOCKET DEPTH0.293 INCHES NOMINAL IN
FLANGE SECTION STYLEPLAIN FACE, SOCKET NECK
STYLE DESIGNATORRECTANGULAR, WITH BOLT HOLES
BOLT HOLE DIAMETER0.406 INCHES NOMINAL IN
FLANGE LENGTH2.740 INCHES NOMINAL IN
RECESS DIAMETER1.781 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.062 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1P4577?
1P4577 is a FLANGE,PIPE.
What is the NSN for 1P4577?
1P4577 is cataloged in the U.S. Government catalog under NSN 4730-01-051-5256. This indicates validated use in U.S. government and defense supply chains.
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