The Knob, cataloged under National Stock Number 5355-00-945-4837, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 17 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5355-00-945-4837 |
| Primary Part Number | 81765-2 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.500 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Counterbore Depth | 0.026 INCHES MINIMUM IN |
| Reference Marking | DOT |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.435 INCHES MINIMUM IN |
| Inside Diameter | 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Color | GRAY, DARK GULL |
| 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 |
|---|---|
| 81765-2 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| 81765 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| CPA5072 | 5/2 Secondary reference U.S. Government activity |
| 81765 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| 91779-01 | 5/9 Secondary reference U.S. Government activity |
| 91770-01 | 5/9 Secondary reference Dupree Inc Aerospace Knob Co Div |
| FNA3224-1 | 3/9 Design control — primary reference Telex Communications Inc Sub of Telex Corp |
| 81765-2 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
NSN 5355-00-945-4837 is a Knob, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-945-4837 has 2 manufacturer part numbers on file: 81765-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), 81765 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-447-9886. Verify interchangeability with system specifications before substitution.
Key specifications for 81765-2: Distance From Hole Center to Knob/skirt Base: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.500 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Style Designator: ROUND. 17 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.