PartsTable
Technical Data Sheet

I8B4MA/#UR — I8B4MA/#UR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

I8B4MA/#UR: I8B4MA/#UR.

The I8B4MA/#UR is a the manufacturer industrial component. Key specifications include skirt_style: RING, skirt_design: NONDETACHABLE, overall_depth: 0.950 INCHES NOMINAL IN, inside_diameter: 0.252 INCHES NOMINAL IN, screw_drive_type: HEXAGON SOCKET, style_designator: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5355-01-081-4182, 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
I8B4MA/#UR
NSN: 5355-01-081-4182
FSC: 5355 — Knobs and Pointers
CAGE: 99813 — JAN HARDWARE MFG CO INC (USA)
SPECIFICATIONS
skirt_styleRING
skirt_designNONDETACHABLE
overall_depth0.950 INCHES NOMINAL IN
inside_diameter0.252 INCHES NOMINAL IN
screw_drive_typeHEXAGON SOCKET
style_designatorHEXAGON
attachment_methodSETSCREWS
counterbore_depth0.227 INCHES NOMINAL IN
overall_thickness0.800 INCHES NOMINAL IN
reference_markingPUSH TO TURN
width_across_flats0.8750 INCHES NOMINAL IN
nominal_thread_size0.164 INCHES SCREW HOLE IN
NSN5355-01-081-4182
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available I8B4MA/#UR TITLE COMPONENT PN I8B4MA/#UR MFR I8B4MA/#UR
KEY FEATURES
•
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE: 0.470 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.8750 INCHES NOMINAL IN
•
SHAFT ACCOMMODATION STYLE: COUNTERBORED
•
OVERALL THICKNESS: 0.800 INCHES NOMINAL IN
•
SKIRT OUTSIDE DIAMETER: 0.806 INCHES NOMINAL IN
•
MATERIAL TRANSPARENCY: OPAQUE
•
STYLE DESIGNATOR: HEXAGON
•
COUNTERBORE DEPTH: 0.227 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE0.470 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.8750 INCHES NOMINAL IN
SHAFT ACCOMMODATION STYLECOUNTERBORED
OVERALL THICKNESS0.800 INCHES NOMINAL IN
SKIRT OUTSIDE DIAMETER0.806 INCHES NOMINAL IN
MATERIAL TRANSPARENCYOPAQUE
STYLE DESIGNATORHEXAGON
COUNTERBORE DEPTH0.227 INCHES NOMINAL IN
REFERENCE MARKINGPUSH TO TURN
SETSCREW HOLE QUANTITY2
OTHER ITEMS IN FSC 5355 — Knobs and Pointers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5355-00-000-5777 5355-00-001-2029 5355-00-001-2403 5355-00-001-4109 5355-00-001-4677 5355-00-001-4724 5355-00-001-4730 5355-00-001-4734
SUBSTITUTES & CROSS-REFERENCES 2
12273401Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5355010814182Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy I8B4MA/#UR?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is I8B4MA/#UR?
I8B4MA/#UR is a I8B4MA/#UR.
What parts can replace I8B4MA/#UR?
There are 2 known substitutes for I8B4MA/#UR: 12273401, 5355010814182. Substitute compatibility should be verified for your specific system.
What is the NSN for I8B4MA/#UR?
I8B4MA/#UR is cataloged in the U.S. Government catalog under NSN 5355-01-081-4182. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — I8B4MA/#UR

✓ 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.