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181406 — BEARING,SLEEVE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

181406: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, thickness: 0.312 INCHES NOMINAL IN, flange_width: 2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN, socket_depth: 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN, recess_diameter: 1.687 INCHES MINIMUM AND 1.697 INCHES MAXIMUM IN, style_designator: SQUARE, ONE BOLT HOLE CIRCLE. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-018-1406, 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
181406
NSN: 5305-00-018-1406
NIINs: 000181406, 000551071, 006511181, 012421076
FSC: 5305 — Screws
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thickness0.312 INCHES NOMINAL IN
flange_width2.000 INCHES MINIMUM AND 2.031 INCHES MAXIMUM IN
socket_depth0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
recess_diameter1.687 INCHES MINIMUM AND 1.697 INCHES MAXIMUM IN
style_designatorSQUARE, ONE BOLT HOLE CIRCLE
surface_treatmentANODIZE
bolt_hole_diameter0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
bolt_hole_quantity4
bolt_circle_diameter1.500 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
flange_section_stylePLAIN FACE, SOCKET NECK
end_item_identificationAIRCRAFT, SKY HAWK A-4
NSN5305-00-018-1406
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 181406 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.125 INCHES MINIMUM IN
•
HARDNESS RATING: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
FASTENER LENGTH2.000 INCHES NOMINAL IN
THREAD LENGTH1.125 INCHES MINIMUM IN
HARDNESS RATING23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 10P STYLE AND 5 GRADE
MINIMUM TENSILE STRENGTH120000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 2
14X3263Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35296-91Same 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 181406?
181406 is a BEARING,SLEEVE.
What parts can replace 181406?
There are 2 known substitutes for 181406: 14X3263, MS35296-91. Substitute compatibility should be verified for your specific system.
What is the NSN for 181406?
181406 is cataloged in the U.S. Government catalog under NSN 5305-00-018-1406. This indicates validated use in U.S. government and defense supply chains.
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