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231905 — ATTENUATOR,VARIABLE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

231905: ATTENUATOR,VARIABLE.

The ATTENUATOR,VARIABLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_style: WEBBED, OFFSET, SOLID, bore_style: INVOLUTE SPLINE BOTH ENDS, flow_angle: 90.0 DEGREES, leg_length: 1.490 INCHES NOMINAL SECOND END IN, seat_angle: 25.0 DEGREES FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-545-4955, 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
231905
NSN: 4730-00-545-4955
NIINs: 005454955, 010072281, 011751686
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleWEBBED, OFFSET, SOLID
bore_styleINVOLUTE SPLINE BOTH ENDS
flow_angle90.0 DEGREES
leg_length1.490 INCHES NOMINAL SECOND END IN
seat_angle25.0 DEGREES FIRST END
tooth_formSTANDARD
flange_shapeRECTANGULAR WITH HOLES SECOND END
thread_class2A FIRST END A
nominal_width2.606 INCHES SECOND END IN
nominal_length2.606 INCHES SECOND END IN
pitch_diameter5.2500 INCHES NOMINAL IN
NSN4730-00-545-4955
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 231905 · 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 SHAPE: RECTANGULAR WITH HOLES SECOND END
•
FLOW ANGLE: 90.0 DEGREES
•
FLANGE FACE DESIGN: RAISED STRAIGHT SECOND END
•
CONNECTION STYLE: INVERTED FLARE (TUBE) FIRST END
•
NOMINAL LENGTH: 2.606 INCHES SECOND END IN
•
CONNECTION TYPE: FLANGE SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4135 ASSN STD SINGLE MATERIAL RESPONSE OVERALLUNABLE TO DECODE
TECHNICAL CHARACTERISTICS
FLANGE SHAPERECTANGULAR WITH HOLES SECOND END
FLOW ANGLE90.0 DEGREES
FLANGE FACE DESIGNRAISED STRAIGHT SECOND END
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
NOMINAL LENGTH2.606 INCHES SECOND END IN
CONNECTION TYPEFLANGE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4135 ASSN STD SINGLE MATERIAL RESPONSE OVERALLUNABLE TO DECODE
BOLT HOLE NOMINAL DIAMETER0.349 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.312 INCHES FIRST ENDUNABLE TO DECODE IN
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 231905?
231905 is a ATTENUATOR,VARIABLE.
What is the NSN for 231905?
231905 is cataloged in the U.S. Government catalog under NSN 4730-00-545-4955. This indicates validated use in U.S. government and defense supply chains.
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