The Grease,aircraft and Instrument, cataloged under National Stock Number 9150-00-935-4017, 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 Leonardo Spa Aircraft Division. Government technical data includes 7 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9150-00-935-4017 |
| Primary Part Number | ROYCO 27 |
| Item Name | Grease,aircraft and Instrument |
| FSC / FSG | 9150 / 91 — Oils and Greases: Cutting, Lubricating, and Hydraulic |
| Manufacturer | Leonardo Spa Aircraft Division |
| Status | ACTIVE |
| Effective Temp Range Rating | -100.0 TO 250.0 FAHRENHEIT DEGF |
| Minimum Dropping Point | 325.0 FAHRENHEIT DEGF |
| Basic Ingredient | GELLING AGENT |
| Maximum Operating Temp | 300.0 FAHRENHEIT DEGF |
| Departure From Cited Document | AS MODIFIED BY QUANTITY WITHIN EACH UNIT PACKAGE AND UNIT PACKAGE TYPE |
| Quantity Within Each Unit Package | 14.000 OUNCES, AVOIRDUPOIS OZ |
| Service Characteristics | CORROSION RESISTIVE AND OXIDATION RESISTANT AND WATER RESISTANT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ROYCO 27 | Leonardo Spa Aircraft Division (ITA) |
| ROYCO 27 | Leonardo Spa Aeronautics Division - Torino Site (ITA) |
| Reference | Meaning |
|---|---|
| L0WTEMPGREASEEP | 5/1 Secondary reference Texaco Inc Corporate Hq |
| MIL-PRF-23827 | 4/1 Identification reference U.S. Government activity |
| MIL-PRF-23827 TYPE I | 5/9 Secondary reference U.S. Government activity |
| SUPERMILA72832 | 5/9 Secondary reference Amoco Oil Co |
| MILG23827 | 5/9 Secondary reference U.S. Government activity |
| ROYCO 27 | 5/1 Secondary reference Lanxess Corporation |
NSN 9150-00-935-4017 is a Grease,aircraft and Instrument, manufactured by Leonardo Spa Aircraft Division, classified under FSC 9150, Oils and Greases: Cutting, Lubricating, and Hydraulic. Status: active.
NSN 9150-00-935-4017 has 2 manufacturer part numbers on file: ROYCO 27 (Leonardo Spa Aircraft Division), ROYCO 27 (Leonardo Spa Aeronautics Division - Torino Site).
8 possible matches (shared part number, not a government interchangeability claim): 9150-00-985-7244, 9150-00-985-7245, 9150-00-985-7246. Verify interchangeability with system specifications before substitution.
Key specifications for ROYCO 27: Effective Temp Range Rating: -100.0 TO 250.0 FAHRENHEIT DEGF; Minimum Dropping Point: 325.0 FAHRENHEIT DEGF; Basic Ingredient: GELLING AGENT; Maximum Operating Temp: 300.0 FAHRENHEIT DEGF. 7 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.