The Knob, cataloged under National Stock Number 5355-01-054-0874, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-054-0874 |
| Primary Part Number | B5156-001 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.310 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.690 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 1.250 INCHES NOMINAL IN |
| Counterbore Depth | 0.440 INCHES MINIMUM IN |
| Setscrew Hole Quantity | 1 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.156 INCHES MINIMUM IN |
| Inside Diameter | 0.125 INCHES NOMINAL IN |
| Gripping Surface Condition | SMOOTH |
| Color | NATURAL |
| Screw Drive Type | CROSS RECESS TYPE 1 |
| Thread Quantity Per Inch | 40 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 |
|---|---|
| B5156-001 PRIMARY | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc (USA) |
| B5156-1 | Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc (USA) |
| Reference | Meaning |
|---|---|
| B5156-001 | 5/9 Secondary reference Aiken Advanced Systems Inc a Div of Amstar Technical Products Inc an Affil of Amstar Corp |
| B5156-1 | 5/9 Secondary reference Aiken Advanced Systems Inc a Div of Amstar Technical Products Inc an Affil of Amstar Corp |
| B5156-001 | 5/9 Secondary reference Applied Communications a Div of Amstar Technical Products Co Inc an Affiliate of Amstar Corp |
NSN 5355-01-054-0874 is a Knob, manufactured by Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-054-0874 has 2 manufacturer part numbers on file: B5156-001 (Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc), B5156-1 (Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc).
Key specifications for B5156-001: Distance From Hole Center to Knob/skirt Base: 0.310 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.690 INCHES NOMINAL IN; Style Designator: ROUND. 16 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.