The Test Set,pneumatic System Compon, cataloged under National Stock Number 4920-00-336-0519, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-336-0519 |
| Primary Part Number | 256216 |
| Item Name | Test Set,pneumatic System Compon |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Length | 8.250 INCHES NOMINAL IN |
| Reference Data and Literature | SERD NO. 0845 |
| Height | 3.250 INCHES NOMINAL IN |
| Functional Description | USED TO PROVIDE A MEANS OF SIMULATING ATMOSPHERIC CONDITIONS EXPERIENCED DURING UNPRESSURIZED AND ISOBARAIC RANGES OF OPERATION AND MEASURING THE DEFLECTION OF THE ISOBARIC BELLOWS |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 5.250 INCHES NOMINAL IN |
| Test Type for Which Designed | CABIN PRESS REGULATOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 256216 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| T37021 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| 256217 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| T37021 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 256217 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 256216 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 4920-00-336-0519 is a Test Set,pneumatic System Compon, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-336-0519 has 3 manufacturer part numbers on file: 256216 (Honeywell International Inc. Div Aerospace - Torrance), T37021 (Honeywell International Inc. Div Aerospace - Torrance), 256217 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 256216: Length: 8.250 INCHES NOMINAL IN; Reference Data and Literature: SERD NO. 0845; Height: 3.250 INCHES NOMINAL IN; Special Features: 5.000LBS LBS. 7 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.
NSN 4920-00-336-0519 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.