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74803181-9 — COVER,JUNCTION BOX

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

74803181-9: COVER,JUNCTION BOX.

The COVER,JUNCTION BOX is a the manufacturer industrial component. Key specifications include cover_type: FLAT, outside_diameter: 3.500 INCHES NOMINAL IN, style_designator: RAISED OFFSET MOUNTING HOLES, mounting_hole_diameter: 0.190 INCHES NOMINAL IN, cover_attachment_method: SCREW, cover_opening_shape_and_quantity: 1 OBLONG. This part is cataloged in the U.S.

Government catalog under NSN 5975-00-433-5983, 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
74803181-9
NSN: 5975-00-433-5983
FSC: 5975 — Electrical Hardware and Supplies
CAGE: 0AHU0 — KALMAR AC INC (USA)
SPECIFICATIONS
cover_typeFLAT
outside_diameter3.500 INCHES NOMINAL IN
style_designatorRAISED OFFSET MOUNTING HOLES
mounting_hole_diameter0.190 INCHES NOMINAL IN
cover_attachment_methodSCREW
cover_mounting_hole_quantity2
cover_opening_shape_and_quantity1 OBLONG
NSN5975-00-433-5983
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COVER,JUNCTION BOX TITLE COMPONENT PN 74803181-9 MFR COVER,JUNCTION BOX
KEY FEATURES
•
COVER MOUNTING HOLE QUANTITY: 2
•
STYLE DESIGNATOR: RAISED OFFSET MOUNTING HOLES
•
MOUNTING HOLE DIAMETER: 0.190 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.500 INCHES NOMINAL IN
•
COVER TYPE: FLAT
•
COVER ATTACHMENT METHOD: SCREW
•
COVER OPENING SHAPE AND QUANTITY: 1 OBLONG
TECHNICAL CHARACTERISTICS
COVER MOUNTING HOLE QUANTITY2
STYLE DESIGNATORRAISED OFFSET MOUNTING HOLES
MOUNTING HOLE DIAMETER0.190 INCHES NOMINAL IN
OUTSIDE DIAMETER3.500 INCHES NOMINAL IN
COVER TYPEFLAT
COVER ATTACHMENT METHODSCREW
COVER OPENING SHAPE AND QUANTITY1 OBLONG
OTHER ITEMS IN FSC 5975 — Electrical Hardware and Supplies
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5975-00-000-0120 5975-00-000-0126 5975-00-000-7420 5975-00-001-1397 5975-00-001-1538 5975-00-001-1539 5975-00-001-1542 5975-00-001-2444
SUBSTITUTES & CROSS-REFERENCES 1
4803181-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74803181-9?
74803181-9 is a COVER,JUNCTION BOX.
What parts can replace 74803181-9?
There is 1 known substitute for 74803181-9: 4803181-9. Substitute compatibility should be verified for your specific system.
What is the NSN for 74803181-9?
74803181-9 is cataloged in the U.S. Government catalog under NSN 5975-00-433-5983. 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.