PartsTable
Technical Data Sheet
PartsTable / MRO / 21748
21748 ✓ Verified by PartsTable
Clementoni · MRO · MRO_GENERAL
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

Powerful and trendy 2.0 speaker set for PC and laptop<br>- Trendy 2.0 speaker set for PC and laptop<br>- 24W peak power (12 Watt RMS)<br>- Stylish, metallic design<br>- Volume control and headphones connection conveniently on the front side<br>- USB-powered – no wall power needed This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-004-0425, 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
MRO→ MRO_GENERAL→ 21748
NSN: 5305-00-004-0425
FSC: 5305
CAGE: 59501 — UNISON INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEADLESS (SETSCREW)
point_styleCUP
thread_class2A A
thread_length0.125 INCHES MAXIMUM IN
fastener_length0.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.062 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.138 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNF
NSN5305-00-004-0425
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21748 · Clementoni ⚠ 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
•
THREAD QUANTITY PER INCH: 40
•
POINT STYLE: CUP
•
THREAD CLASS: 2A A
•
THREAD SERIES DESIGNATOR: UNF
•
MATERIAL: STEEL OVERALL
•
INTERNAL DRIVE STYLE: HEXAGON
•
FASTENER LENGTH: 0.125 INCHES NOMINAL IN
•
HEAD STYLE: HEADLESS (SETSCREW)
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH40
POINT STYLECUP
THREAD CLASS2A A
THREAD SERIES DESIGNATORUNF
MATERIALSTEEL OVERALL
INTERNAL DRIVE STYLEHEXAGON
FASTENER LENGTH0.125 INCHES NOMINAL IN
HEAD STYLEHEADLESS (SETSCREW)
WIDTH ACROSS FLATS0.062 INCHES NOMINAL IN
THREAD LENGTH0.125 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
441-1179-005Interchangeable
interchangeable cross-reference
interchangeable
1-0001-0029-42Interchangeable
interchangeable cross-reference
interchangeable
B97565Interchangeable
interchangeable cross-reference
interchangeable
21748Interchangeable
interchangeable cross-reference
interchangeable
L-4038Interchangeable
interchangeable cross-reference
interchangeable
4038Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21748?
21748 is a CAPACITOR,FIXED,CERAMIC DIELECTR manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21748?
There are 9 known substitutes for 21748: 441-1179-005, 1-0001-0029-42, B97565 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21748?
21748 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-004-0425. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026