The Processing Unit,photographic Fil, cataloged under National Stock Number 6740-00-959-6974, is classified within Federal Supply Class 6740 (Photographic Developing and Finishing Equipment) of the Photographic Equipment group. The manufacturer of record is Joint Photographic Type Designation System. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6740-00-959-6974 |
| Primary Part Number | ES20-2 |
| Item Name | Processing Unit,photographic Fil |
| FSC / FSG | 6740 / 67 — Photographic Developing and Finishing Equipment |
| Manufacturer | Joint Photographic Type Designation System |
| Status | ACTIVE |
| Phase | SINGLE |
| Processing Tank Quantity | 1 |
| Current Type | AC/DC |
| Accessory Identifying Number | EN-91 TYPE NO. |
| Film Size Accommodated | 35-MM,70-MM,2-1/4 IN. BY 2-1/4 IN.,2-1/4 IN. BY 3-1/4 IN.,4 IN. BY 5 IN. IN |
| Film Accommodation Type | CUT FILM |
| Accessory Component Name | PRINTER,PROJECTION,PHOTOGRAPHIC |
| Voltage in Volts | 110.0 |
| Accessory Controlling Agency | ECOM |
| Loading Type | RACK OR REEL |
| Carrying Case | PROVIDED |
| Frequency Rating | 60.0 HERTZ NOMINAL |
| Accessory Component Quantity | 1 |
| Operation Method | MANUAL |
| Furnished Items and Quantity | 1 CABLE ASSY;2 CASE,PHOTOGRAPHIC EQUIPMENT;1 EASEL,PHOTOGRAPHIC PAPER;1FILTER SET,VARIABLE CONTRAST;1 FOOT SWITCH;1 GRADUATE;1 PADDLE,PRINT,PHOTOGRAPHIC;12 PLATE,FERROTYPE;1 ROD,STIRRING;1 SAFELIGHT;1 SIPHON;1 SQUEEGEE;TANK,PROCESSING,CUT FILM OR FILM PACK;1 TANK,PROCESSING,ROLL FILM;1 THERMOMETER;1 TIMER,INTERVAL;1 TIMER STOP;2 TONGS;3 TRAY,PROCESSING,PHOTOGRAPHIC,11 IN. BY 14 IN.;1 TRAY,PROCESSING,PHOTOGRAPHIC,16 IN. BY 20 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| ES20-2 PRIMARY | Joint Photographic Type Designation System |
| Reference | Meaning |
|---|---|
| 9-112-0035 | 5/9 Secondary reference Berkey Marketing Companies Div of Berkey Inc |
NSN 6740-00-959-6974 is a Processing Unit,photographic Fil, manufactured by Joint Photographic Type Designation System, classified under FSC 6740, Photographic Developing and Finishing Equipment. Status: active.
NSN 6740-00-959-6974 has 1 manufacturer part number on file: ES20-2 (Joint Photographic Type Designation System).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-253-2895. Verify interchangeability with system specifications before substitution.
Key specifications for ES20-2: Phase: SINGLE; Processing Tank Quantity: 1; Current Type: AC/DC; Accessory Identifying Number: EN-91 TYPE NO.. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.