The Hydraulic Fluid,fire Resistant, cataloged under National Stock Number 9150-01-641-1077, is classified within Federal Supply Class 9150 (Oils and Greases: Cutting, Lubricating, and Hydraulic) of the Fuels, Lubricants, Oils, and Waxes group. The manufacturer of record is Solutia Inc. Div Specialty Chemicals. Government technical data includes 2 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9150-01-641-1077 |
| Primary Part Number | LD4-55 US GAL |
| Item Name | Hydraulic Fluid,fire Resistant |
| FSC / FSG | 9150 / 91 — Oils and Greases: Cutting, Lubricating, and Hydraulic |
| Manufacturer | Solutia Inc. Div Specialty Chemicals |
| Status | ACTIVE |
| Quantity Within Each Unit Package | 55.0 GALLONS |
| Viscosity at Rated Temp | 10.65 MINIMUM 100 DEG FAHRENHEIT AND 11.65 MAXIMUM 100 DEG FAHRENHEIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LD4-55 US GAL | Eastman Chemical Company (USA) |
| LD4-55 US GAL PRIMARY | Solutia Inc. Div Specialty Chemicals (USA) |
NSN 9150-01-641-1077 is a Hydraulic Fluid,fire Resistant, manufactured by Solutia Inc. Div Specialty Chemicals, classified under FSC 9150, Oils and Greases: Cutting, Lubricating, and Hydraulic. Status: active.
NSN 9150-01-641-1077 has 2 manufacturer part numbers on file: LD4-55 US GAL (Eastman Chemical Company), LD4-55 US GAL (Solutia Inc. Div Specialty Chemicals).
Key specifications for LD4-55 US GAL: Quantity Within Each Unit Package: 55.0 GALLONS; Viscosity at Rated Temp: 10.65 MINIMUM 100 DEG FAHRENHEIT AND 11.65 MAXIMUM 100 DEG FAHRENHEIT; Special Features: APPEARANCE AND ODOR:CLEAR PURPLE OILY LIQUID ODORLESS; SPEC GRAVITY:1.004-1.014; MELT/FREEZE PT:<-62.2C, -80.F, ITEM IS FAA CERTIFIED; End Item Identification: KC-46 AIRCRAFT. 2 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.