The Protractor,digital, cataloged under National Stock Number 5210-01-309-3487, is classified within Federal Supply Class 5210 (Measuring Tools, Craftsmen's) of the Measuring Tools group. The manufacturer of record is Travers Tool Co Inc Dba Travers Tool Co Inc. Government technical data includes 1 specification, 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5210-01-309-3487 |
| Primary Part Number | 57-020-550 |
| Item Name | Protractor,digital |
| FSC / FSG | 5210 / 52 — Measuring Tools, Craftsmen's |
| Manufacturer | Travers Tool Co Inc Dba Travers Tool Co Inc |
| Status | ACTIVE |
| General Characteristics Item Description | PORM 45 DEG MEASUREMENT RANGE; PORM 0.1 DEG MEASUREMENT RESOLUTION; ACCURACY FOR 0 TO 10 DEG PORM 0.1 DEG; FOR 10 TO 45 DEG 1 1/2 PCT OF READING; 5.45 IN. X 3.21 IN. X 1.50 IN. DIMENSIONS; 32 TO 150 DEG F OPER TEMP RANGE; 9V BATTERY OPERATED; LCD DISPLAY V |
| 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 |
|---|---|
| AS-50 | Travers Tool Co Inc Dba Travers Tool Co Inc (USA) |
| 57-020-550 PRIMARY | Travers Tool Co Inc Dba Travers Tool Co Inc (USA) |
NSN 5210-01-309-3487 is a Protractor,digital, manufactured by Travers Tool Co Inc Dba Travers Tool Co Inc, classified under FSC 5210, Measuring Tools, Craftsmen's. Status: active.
NSN 5210-01-309-3487 has 2 manufacturer part numbers on file: AS-50 (Travers Tool Co Inc Dba Travers Tool Co Inc), 57-020-550 (Travers Tool Co Inc Dba Travers Tool Co Inc).
2 possible matches (shared part number, not a government interchangeability claim): 7025-01-419-6507, 6520-01-633-2244. Verify interchangeability with system specifications before substitution.
Key specifications for 57-020-550: General Characteristics Item Description: PORM 45 DEG MEASUREMENT RANGE; PORM 0.1 DEG MEASUREMENT RESOLUTION; ACCURACY FOR 0 TO 10 DEG PORM 0.1 DEG; FOR 10 TO 45 DEG 1 1/2 PCT OF READING; 5.45 IN. X 3.21 IN. X 1.50 IN. DIMENSIONS; 32 TO 150 DEG F OPER TEMP RANGE; 9V BATTERY OPERATED; LCD DISPLAY V. 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.