PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 20851
20851 ✓ Verified by PartsTable
ICY BOX · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

<b>Allrounder in fancy piano lacquer look</b><br>The IB-DK401 extends a notebook / PC via the integrated USB 3.0 cable<br>to connect a VGA- & HDMI® port and allows a direct connection to a TV, projector<br>or other monitors. Further to the USB 3.0 port there is a Gigabit LAN port on<br>the housing for a router or switch. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-227-6570, 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
20851
NSN: 5310-00-227-6570
FSC: 5310
CAGE: 76854 — ELECTRO SWITCH CORP. DBA OAK GRISGSBY DIV ELECTROSWITCH (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
body_styleSTRAIGHT SHAPE, INTERNAL COUPLING
shell_typeSOLID
body_length0.500 INCHES MAXIMUM IN
swage_depth0.032 INCHES IN
hole_diameter0.315 INCHES NOMINAL IN
overall_depth18.000 INCHES NOMINAL IN
overall_width18.000 INCHES NOMINAL IN
rating_methodWINDING TURNS SINGLE COMPONENT SINGLE SECONDARY
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
turn_quantity143 SINGLE COMPONENT SINGLE PRIMARY
coil_form_typeSOLID SINGLE COMPONENT
NSN5310-00-227-6570
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20851 · ICY BOX ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: KEY
•
MATERIAL: STEEL OVERALL
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.114 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.315 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.655 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORKEY
MATERIALSTEEL OVERALL
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.114 INCHES MAXIMUM IN
HOLE DIAMETER0.315 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS0.655 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
EXTERNAL PREBENT KEY LENGTH0.058 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
28918Interchangeable
interchangeable cross-reference
interchangeable
SM-D-752390Interchangeable
interchangeable cross-reference
interchangeable
2085-1Interchangeable
interchangeable cross-reference
interchangeable
771638Interchangeable
interchangeable cross-reference
interchangeable
2021064Interchangeable
interchangeable cross-reference
interchangeable
160-2085-01-0503Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 20851?
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 20851?
20851 is a CONNECTOR,PLUG,ELECTRICAL manufactured by ICY BOX.
What parts can replace 20851?
There are 7 known substitutes for 20851: 28918, SM-D-752390, 2085-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20851?
20851 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-227-6570. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 20851

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026