The Head,micrometer, cataloged under National Stock Number 5210-01-289-1749, is classified within Federal Supply Class 5210 (Measuring Tools, Craftsmen's) of the Measuring Tools group. The manufacturer of record is L.s. Starrett Company (the) Div Tool Division. Government technical data includes 11 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 | 5210-01-289-1749 |
| Primary Part Number | G3-A-339 |
| Item Name | Head,micrometer |
| FSC / FSG | 5210 / 52 — Measuring Tools, Craftsmen's |
| Manufacturer | L.s. Starrett Company (the) Div Tool Division |
| Status | ACTIVE |
| Spindle Projection Length at Zero Micrometer Setting | 4.000 INCHES NOMINAL IN |
| Measurement System | ENGLISH |
| Plated Finish | NOT INCLUDED |
| Clamping Surface Length | 5.000 INCHES NOMINAL IN |
| Stainless Steel Material | INCLUDED |
| Features Provided | HARDENED MICROMETER SPINDLE |
| Ratchet Stop | NOT INCLUDED |
| Locking Device | INCLUDED |
| Clamping Surface Diameter | 0.562 INCHES NOMINAL IN |
| Smallest Graduation Unit | TEN-THOUSANDTHS OF AN INCH |
| Measurement Range | +0.000 TO 1.000 INCHES IN |
| 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 |
|---|---|
| G3-A-339 PRIMARY | L.s. Starrett Company (the) Div Tool Division (USA) |
NSN 5210-01-289-1749 is a Head,micrometer, manufactured by L.s. Starrett Company (the) Div Tool Division, classified under FSC 5210, Measuring Tools, Craftsmen's. Status: active.
NSN 5210-01-289-1749 has 1 manufacturer part number on file: G3-A-339 (L.s. Starrett Company (the) Div Tool Division).
Key specifications for G3-A-339: Spindle Projection Length at Zero Micrometer Setting: 4.000 INCHES NOMINAL IN; Measurement System: ENGLISH; Plated Finish: NOT INCLUDED; Clamping Surface Length: 5.000 INCHES NOMINAL IN. 11 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.