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Technical Data Sheet
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21403 — Technical Data Sheet

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EIZO · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

- HDD capacity up to 1 TB<br>- Horizontal or vertical with stand<br>- Low noise, fanless design<br>- Hot Plug & Play and Hot Swap<br>- On-/Off switch<br><br>ICY BOX with German Virtues<br><br>Hardworking: with USB data-transfer rates of up to 480 Mbit/s are possible, with eSATA even up to 3 Gbit/s.<br>Strong: aluminium case.<br>Ready to be of service: Hot Swap and Easy Plug and Play for fast and easy change of hard drives.<br>Low profile: silent, as without fan. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-274-1917, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
21403
NSN: 5306-00-274-1917
FSC: 5306
CAGE: 66935 — JOHNSON CONTROLS NAVY SYSTEMS, LLC (USA)
SPECIFICATIONS
special_features17IN. W X 18IN. L IN
end_item_identificationBOAT, RIGID INFLATABLE, 11 METER, 11MRB0421
part_name_assigned_by_controlling_agencyTRIM TAB
NSN5306-00-274-1917
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21403 · EIZO ⚠ 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 STYLE: DEE
•
DISTANCE FROM CENTERLINE TO FLAT: 0.215 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
HEAD DIAMETER: 0.609 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 24
•
HEAD HEIGHT: 0.188 INCHES NOMINAL IN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 0.750 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEDEE
DISTANCE FROM CENTERLINE TO FLAT0.215 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
HEAD DIAMETER0.609 INCHES NOMINAL IN
THREAD QUANTITY PER INCH24
HEAD HEIGHT0.188 INCHES NOMINAL IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM IN
FASTENER LENGTH2.188 INCHES NOMINAL IN
MATERIALSTEEL COMP 3140 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
2242333-1Interchangeable
interchangeable cross-reference
interchangeable
SIT-17HInterchangeable
interchangeable cross-reference
interchangeable
0360-1533Interchangeable
interchangeable cross-reference
interchangeable
250-21215 ITEM 8Interchangeable
interchangeable cross-reference
interchangeable
250-21215Interchangeable
interchangeable cross-reference
interchangeable
F15T8-18/SPECTRUMLITE-PL/HD17MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21403?
21403 is a HEAD,LINEAR ACTUATING CYLINDER manufactured by EIZO.
What parts can replace 21403?
There are 7 known substitutes for 21403: 2242333-1, SIT-17H, 0360-1533 and 4 more. Substitute compatibility should be verified for your specific system.
Is 21403 still available?
21403 is currently cancelled.
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Last verified: September 2026