The Knob, cataloged under National Stock Number 5355-00-980-5647, 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 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5355-00-980-5647 |
| Primary Part Number | 505-4-2M |
| 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 | 0.158 INCHES MAXIMUM IN |
| Shaft Accommodation Style | ROUND |
| Length | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Overall Thickness | 0.480 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN |
| Style Designator | POINTER |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Inside Diameter | 0.405 INCHES MINIMUM IN |
| Pointer Design | NONDETACHABLE |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Width | 0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN |
| Screw Drive Type | HEXAGON SOCKET |
| 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 |
|---|---|
| 505-4-2M | Lerco Div Space-Lok Inc (USA) |
| 0P2B | Electronic Hardware Corp Dba Electronic Hardware Corp (USA) |
| Reference | Meaning |
|---|---|
| MS91528-0P2B | 5/9 Secondary reference U.S. Government activity |
| KMS5P2L | 5/9 Secondary reference Dar Electronics Inc Commercial Products Div Dba National Radio Co |
| NASM3926 | 3/1 Design control — primary reference U.S. Government activity |
| KMS5P2L | 5/9 Secondary reference Dar Electronics Inc Dba National Radio Co |
| 52A4MA | 5/2 Secondary reference U.S. Government activity |
| KMS5P2L | 5/9 Secondary reference U.S. Government activity |
| MS91528-0P2B | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-00-980-5647 is a Knob, manufactured by Lerco Div Space-Lok Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-980-5647 has 2 manufacturer part numbers on file: 505-4-2M (Lerco Div Space-Lok Inc), 0P2B (Electronic Hardware Corp Dba Electronic Hardware Corp).
1 possible match (shared part number, not a government interchangeability claim): 5355-00-990-3173. Verify interchangeability with system specifications before substitution.
Key specifications for 505-4-2M: Distance From Hole Center to Knob/skirt Base: 0.158 INCHES MAXIMUM IN; Shaft Accommodation Style: ROUND; Length: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Overall Thickness: 0.480 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN. 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.