The Leak Detector,refrigerant Gas, cataloged under National Stock Number 4940-01-259-8053, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Yokogawa Corporation of America. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4940-01-259-8053 |
| Primary Part Number | H-10G |
| Item Name | Leak Detector,refrigerant Gas |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Yokogawa Corporation of America |
| Status | ACTIVE |
| General Characteristics Item Description | O/A 2.750 IN. BY 8.000 IN. BY 1.750 IN.;USES TWO D SIZE BATTERIES;SENSES HALON 1301 LEAKS 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 |
|---|---|
| H-10G PRIMARY | Yokogawa Corporation of America (USA) |
| Reference | Meaning |
|---|---|
| 4940PL0792818 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2365-01 | 5/9 Secondary reference Yokogawa Corporation of America |
NSN 4940-01-259-8053 is a Leak Detector,refrigerant Gas, manufactured by Yokogawa Corporation of America, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-01-259-8053 has 1 manufacturer part number on file: H-10G (Yokogawa Corporation of America).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-607-6483. Verify interchangeability with system specifications before substitution.
Key specifications for H-10G: General Characteristics Item Description: O/A 2.750 IN. BY 8.000 IN. BY 1.750 IN.;USES TWO D SIZE BATTERIES;SENSES HALON 1301 LEAKS IN. 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.