The Knob, cataloged under National Stock Number 5355-01-284-5527, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5355-01-284-5527 |
| Primary Part Number | 6121K43 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Overall Thickness | 0.750 INCHES NOMINAL IN |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Material | STEEL |
| 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 |
|---|---|
| 6121K43 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 2613296-1 | 5/9 Secondary reference Alliant Techsystems Operations Llc Div Defense Electronic Systems |
| 2613296 | 5/9 Secondary reference Alliant Techsystems Operations Llc Div Defense Electronic Systems |
NSN 5355-01-284-5527 is a Knob, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-284-5527 has 1 manufacturer part number on file: 6121K43 (Mcmaster-Carr Supply Co).
1 possible match (shared part number, not a government interchangeability claim): 5355-01-305-7814. Verify interchangeability with system specifications before substitution.
Key specifications for 6121K43: Overall Thickness: 0.750 INCHES NOMINAL IN; Outside Diameter: 1.000 INCHES NOMINAL IN; Gripping Surface Condition: GRIP AID; Color: BLACK. 5 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.