The Knob, cataloged under National Stock Number 5355-01-030-1884, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-030-1884 |
| Primary Part Number | K-1250A-1-4 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Shank Diameter | 1.110 INCHES NOMINAL IN |
| Distance From Hole Center to Knob/skirt Base | 0.280 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.750 INCHES NOMINAL IN |
| Shank Length | 0.120 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Counterbore Depth | 0.157 INCHES NOMINAL IN |
| Reference Marking | LINE |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.138 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.980 INCHES NOMINAL IN |
| Inside Diameter | 0.251 INCHES NOMINAL IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Color | NATURAL |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| 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 |
|---|---|
| K-1250A-1-4 PRIMARY | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| 44-0001 | 5/9 Secondary reference U.S. Government activity |
| K-1250A-1-4 | 5/9 Secondary reference U.S. Government activity |
NSN 5355-01-030-1884 is a Knob, manufactured by Te Connectivity Corporation, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-030-1884 has 1 manufacturer part number on file: K-1250A-1-4 (Te Connectivity Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5905-01-064-4004, 5950-01-196-0058. Verify interchangeability with system specifications before substitution.
Key specifications for K-1250A-1-4: Shank Diameter: 1.110 INCHES NOMINAL IN; Distance From Hole Center to Knob/skirt Base: 0.280 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.750 INCHES NOMINAL IN. 20 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.