PartsTable
Technical Data Sheet
Download PDF

446-SS-20 — SCREW,PANEL FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

446-SS-20: SCREW,PANEL FASTENER.

The SCREW,PANEL FASTENER is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, head_style: KNURLED NO. 4, head_height: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, thread_length: 0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-01-469-9918, 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
446-SS-20
NSN: 5305-01-469-9918
FSC: 5305 — Screws
CAGE: 55566 — MATTHEW WARREN, INC DBA RAF ELECTRONIC HARDWARE DIV RAF ELECTRONIC HARDWARE, LLC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
head_styleKNURLED NO. 4
head_height0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
thread_length0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
fastener_length0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
internal_drive_styleSLOT
end_item_identification5895-01-464-0231
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNF
NSN5305-01-469-9918
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 446-SS-20 · 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: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: KNURLED NO. 4
•
INTERNAL DRIVE STYLE: SLOT
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
FASTENER LENGTH0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
THREAD LENGTH0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEKNURLED NO. 4
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
END ITEM IDENTIFICATION5895-01-464-0231
THREAD QUANTITY PER INCH32
MATERIALUNABLE TO DECODE
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
70-2747373-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 446-SS-20?
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 446-SS-20?
446-SS-20 is a SCREW,PANEL FASTENER.
What parts can replace 446-SS-20?
There is 1 known substitute for 446-SS-20: 70-2747373-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 446-SS-20?
446-SS-20 is cataloged in the U.S. Government catalog under NSN 5305-01-469-9918. 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 — 446-SS-20

✓ 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.