The Knob, cataloged under National Stock Number 5355-00-720-5087, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Kurz-Kasch Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-720-5087 |
| Primary Part Number | 647-3L |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Kurz-Kasch Inc |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.281 INCHES NOMINAL IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.594 INCHES NOMINAL IN |
| Skirt Outside Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.812 INCHES NOMINAL IN |
| Reference Marking | LINE |
| Setscrew Hole Quantity | 1 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | SLOT |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | FLARED |
| Attachment Method | SETSCREWS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 647-3L PRIMARY | Kurz-Kasch Inc (USA) |
| Reference | Meaning |
|---|---|
| 454-0265 | 5/9 Secondary reference Western Reserve Electronics Inc |
| S647-3L | 5/9 Secondary reference Kurz-Kasch Inc |
| P21941B | 5/9 Secondary reference Kurz-Kasch Inc |
NSN 5355-00-720-5087 is a Knob, manufactured by Kurz-Kasch Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-720-5087 has 1 manufacturer part number on file: 647-3L (Kurz-Kasch Inc).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-311-5523. Verify interchangeability with system specifications before substitution.
Key specifications for 647-3L: Distance From Hole Center to Knob/skirt Base: 0.281 INCHES NOMINAL IN; Shaft Accommodation Style: ROUND; Overall Thickness: 0.594 INCHES NOMINAL IN; Skirt Outside Diameter: 1.000 INCHES NOMINAL IN. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.