The Knob, cataloged under National Stock Number 5355-00-165-7129, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Lerco Div Space-Lok Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-165-7129 |
| Primary Part Number | 509-2-2M-1 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Lerco Div Space-Lok Inc |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.484 INCHES MAXIMUM IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 1.325 INCHES MINIMUM AND 1.425 INCHES MAXIMUM IN |
| Skirt Outside Diameter | 0.845 INCHES MAXIMUM IN |
| Material Transparency | OPAQUE |
| Style Designator | ROUND WITH TRIANGULAR FACE |
| Outside Diameter | 0.890 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| Counterbore Depth | 0.320 INCHES MINIMUM IN |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.640 INCHES MINIMUM IN |
| Inside Diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLUE |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | STEPPED |
| 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 |
|---|---|
| 509-2-2M-1 | Lerco Div Space-Lok Inc (USA) |
| 2D2B1 | Electronic Hardware Corp Dba Electronic Hardware Corp (USA) |
| Reference | Meaning |
|---|---|
| KMS9D2L1 | 5/9 Secondary reference U.S. Government activity |
| MS91528-2D2B1 | 3/2 Design control — primary reference U.S. Government activity |
| MS91528-2D2B1 | 5/9 Secondary reference U.S. Government activity |
| 222749-221 | 5/2 Secondary reference U.S. Government activity |
| NASM3926 | 3/1 Design control — primary reference U.S. Government activity |
| KMS9D2L1 | 5/9 Secondary reference Dar Electronics Inc Dba National Radio Co |
| A91B4MA | 5/2 Secondary reference U.S. Government activity |
| KMS9D2L1 | 5/9 Secondary reference Dar Electronics Inc Commercial Products Div Dba National Radio Co |
NSN 5355-00-165-7129 is a Knob, manufactured by Lerco Div Space-Lok Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-165-7129 has 2 manufacturer part numbers on file: 509-2-2M-1 (Lerco Div Space-Lok Inc), 2D2B1 (Electronic Hardware Corp Dba Electronic Hardware Corp).
Key specifications for 509-2-2M-1: Distance From Hole Center to Knob/skirt Base: 0.484 INCHES MAXIMUM IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 1.325 INCHES MINIMUM AND 1.425 INCHES MAXIMUM IN; Skirt Outside Diameter: 0.845 INCHES MAXIMUM 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.