The Parallel, cataloged under National Stock Number 5220-00-528-2229, is classified within Federal Supply Class 5220 (Inspection Gages and Precision Layout Tools) of the Measuring Tools group. The manufacturer of record is L.s. Starrett Company (the) Div Tool Division. Government technical data includes 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5220-00-528-2229 |
| Primary Part Number | 154B |
| Item Name | Parallel |
| FSC / FSG | 5220 / 52 — Inspection Gages and Precision Layout Tools |
| Manufacturer | L.s. Starrett Company (the) Div Tool Division |
| Status | ACTIVE |
| Matched Pairs | NOT FURNISHED |
| Design Type | ADJUSTABLE BAR |
| Material | STEEL |
| 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 |
|---|---|
| 154B PRIMARY | L.s. Starrett Company (the) Div Tool Division (USA) |
| Reference | Meaning |
|---|---|
| 41P164-175 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| WU20250 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| MILP45822 | 5/2 Secondary reference U.S. Government activity |
NSN 5220-00-528-2229 is a Parallel, manufactured by L.s. Starrett Company (the) Div Tool Division, classified under FSC 5220, Inspection Gages and Precision Layout Tools. Status: active.
NSN 5220-00-528-2229 has 1 manufacturer part number on file: 154B (L.s. Starrett Company (the) Div Tool Division).
Key specifications for 154B: Overall Height: 0.500 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN; Matched Pairs: NOT FURNISHED; Design Type: ADJUSTABLE BAR; Overall Length: 2.125 INCHES NOMINAL IN. 3 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.