The Knob, cataloged under National Stock Number 5355-00-712-0255, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-712-0255 |
| Primary Part Number | 7120255 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Shank Diameter | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN |
| Shank Length | 0.828 INCHES MINIMUM AND 0.859 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.312 INCHES RECEPTACLE IN |
| Inside Diameter | 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Shank Style | CONCAVE |
| Gripping Surface Condition | SMOOTH |
| Color | NATURAL |
| Shank Radius | 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 18 RECEPTACLE |
| Material | STEEL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RECEPTACLE |
| Attachment Method | SCREW ON |
| 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 |
|---|---|
| 7120255 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5355-00-712-0255 is a Knob, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-712-0255 has 1 manufacturer part number on file: 7120255 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 7120255: Shank Diameter: 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN; Shaft Accommodation Style: ROUND; Overall Thickness: 1.172 INCHES MINIMUM AND 1.203 INCHES MAXIMUM IN; Shank Length: 0.828 INCHES MINIMUM AND 0.859 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.