The Knob, cataloged under National Stock Number 5355-00-721-6944, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kurz-Kasch Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-721-6944 |
| Primary Part Number | S645-3 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — No Item Name Available |
| Manufacturer | Kurz-Kasch Inc |
| Status | ACTIVE |
| Skirt Style | FLARED |
| Overall Thickness | 0.438 INCHES NOMINAL IN |
| Width | 0.625 INCHES NOMINAL IN |
| Color | BLACK |
| Skirt Outside Diameter | 0.750 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Style Designator | FLUTED FOILS |
| Nominal Thread Size | 0.138 INCHES SCREW HOLE IN |
| Skirt Design | NONDETACHABLE |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Fluted Foil Quantity | 7 |
| Attachment Method | SETSCREWS |
| Screw Drive Type | SLOT |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Distance From Hole Center to Knob/skirt Base | 0.219 INCHES NOMINAL IN |
| Gripping Surface Condition | SMOOTH |
| Shaft Accommodation Style | ROUND |
| Setscrew Hole Quantity | 1 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5355-00-721-6944 is a Knob, manufactured by Kurz-Kasch Inc, classified under FSC 5355 (No Item Name Available). Status: active.
NSN 5355-00-721-6944 has 4 cross-referenced part numbers: 1751806 (Lockheed Martin Corporation Div Rms - Mitchel Field), S645-3 (Cosmo Corporation), S676-3 (Kurz-Kasch Inc), S645-3 (Kurz-Kasch Inc).
There are 2 known substitutes for 5355-00-721-6944: 3110-00-100-5303, 4320-00-225-1736. Verify interchangeability with system specifications before substitution.
Key specifications for S645-3: Skirt Style: FLARED; Overall Thickness: 0.438 INCHES NOMINAL IN; Width: 0.625 INCHES NOMINAL IN; Color: BLACK. 19 total characteristics are documented in the Federal Logistics Information System.