The By-Pass and Control Assembly, cataloged under National Stock Number 1680-01-513-5918, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Mission Systems Orchard Park 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-513-5918 |
| Primary Part Number | B44307-3 |
| Item Name | By-Pass and Control Assembly |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| Supplementary Features | FUNCTIONS BETWEEN MICRO COOLING UNIT AND COOLING GARMENT TO CONTROL COOLING FLUID SUPPLY |
| 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 |
|---|---|
| B44307-3 PRIMARY | Mission Systems Orchard Park Inc (USA) |
| Reference | Meaning |
|---|---|
| B44307-1 | 5/9 Secondary reference Mission Systems Orchard Park Inc |
| WT101095-001 | 5/9 Secondary reference Strata-G Solutions Llc |
NSN 1680-01-513-5918 is a By-Pass and Control Assembly, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-513-5918 has 1 manufacturer part number on file: B44307-3 (Mission Systems Orchard Park Inc).
Key specifications for B44307-3: Supplementary Features: FUNCTIONS BETWEEN MICRO COOLING UNIT AND COOLING GARMENT TO CONTROL COOLING FLUID SUPPLY; End Item Identification: AIR WARRIOR SURVIVAL SYSTEM. 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.
NSN 1680-01-513-5918 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.