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90-125-MK — COVER,CONDUIT OUTLET

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

90-125-MK: COVER,CONDUIT OUTLET.

The COVER,CONDUIT OUTLET is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYESTER INSIDE, leg_length: 6.0 INCHES NOMINAL ALL ENDS IN, seat_angle: 1.5 RADIANS INLET, flange_shape: ROUND ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-643-5890, 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
90-125-MK
NSN: 4730-01-643-5890
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 07096 — BURKE INDUSTRIES PUROSIL DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYESTER INSIDE
leg_length6.0 INCHES NOMINAL ALL ENDS IN
seat_angle1.5 RADIANS INLET
flange_shapeROUND ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorPLAIN
nominal_thickness0.19 INCHES ALL ENDS IN
flange_face_designPLAIN ALL ENDS
nominal_overall_length12.0 INCHES IN
reduced_passage_nominal_inside_diameter1.25 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agency90 DEGREE SILICONE ELBOW - 4PLY POLYESTER REINFORCED
NSN4730-01-643-5890
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 90-125-MK · 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: ROUND ALL ENDS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
NOMINAL OVERALL LENGTH: 12.0 INCHES IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: PLAIN
•
LEG LENGTH: 6.0 INCHES NOMINAL ALL ENDS IN
•
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 1.25 INCHES ALL ENDS IN
•
SEAT ANGLE: 1.5 RADIANS INLET
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
NOMINAL OVERALL LENGTH12.0 INCHES IN
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORPLAIN
LEG LENGTH6.0 INCHES NOMINAL ALL ENDS IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER1.25 INCHES ALL ENDS IN
SEAT ANGLE1.5 RADIANS INLET
PART NAME ASSIGNED BY CONTROLLING AGENCY90 DEGREE SILICONE ELBOW - 4PLY POLYESTER REINFORCED
MATERIALPLASTIC POLYESTER INSIDE
SUBSTITUTES & CROSS-REFERENCES 1
90-125Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90-125-MK?
90-125-MK is a COVER,CONDUIT OUTLET.
What parts can replace 90-125-MK?
There is 1 known substitute for 90-125-MK: 90-125. Substitute compatibility should be verified for your specific system.
What is the NSN for 90-125-MK?
90-125-MK is cataloged in the U.S. Government catalog under NSN 4730-01-643-5890. 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.