The Extension,caliper,micrometer,ins, cataloged under National Stock Number 5210-01-656-4921, is classified within Federal Supply Class 5210 (Measuring Tools, Craftsmen's) of the Measuring Tools group. The manufacturer of record is Textron Aviation Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5210-01-656-4921 |
| Primary Part Number | 25WS3197-5 |
| Item Name | Extension,caliper,micrometer,ins |
| FSC / FSG | 5210 / 52 — Measuring Tools, Craftsmen's |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Supplementary Features | PARTS CATALOG: 28-10-00-05 |
| 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 |
|---|---|
| 25WS3197-5 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 25WS3197-5 | 3/9 Design control — primary reference Beechcraft Corporation Dba Textron Aviation |
NSN 5210-01-656-4921 is a Extension,caliper,micrometer,ins, manufactured by Textron Aviation Inc, classified under FSC 5210, Measuring Tools, Craftsmen's. Status: active.
NSN 5210-01-656-4921 has 1 manufacturer part number on file: 25WS3197-5 (Textron Aviation Inc).
Key specifications for 25WS3197-5: Supplementary Features: PARTS CATALOG: 28-10-00-05; Special Features: USED ON SYSTEM INSTL-REFUEL WING; Part Name Assigned by Controlling Agency: EXTENSION FOR FORCE GAUGE TESTER, 50-75 MM MM; End Item Identification: HAWKER 800XP/850XP, TWIN ENGINE CORPORATE AIRCRAFT. 1 specification is 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.