The Seal,metallic,aircraft Gas Turbi, cataloged under National Stock Number 2840-01-316-8500, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-316-8500 |
| Item Name | Seal,metallic,aircraft Gas Turbi |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2-103-067R01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-316-8500 is a Seal,metallic,aircraft Gas Turbi, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-01-316-8500: Special Features: SHAFT "A" 20.000 RPM; SURFACE SPEED SHAFT "A" 11,830 FPM; SHAFT "B" 17,500 RPM; SURFACE SPEED SHAFT "B" 9,323 FPM; OIL TEMP 400 F MAX; AIR TEMP (INSIDE SEAL) 500 F; OIL TYPE MIL-L-23699 OIL CONDITION MIST; PRESSURE DIFFERENTIAL ACROSS SEAL 40 PSIG MAX; PRESSURE (AIR SIDE) 25 PSIG; PRESSURE OIL: ATM0SPHERE RPM; Part Name Assigned by Controlling Agency: SEAL,METALLIC,SPECIAL; End Item Identification: CHALLENGER ACFT ENGINE ALF502L-2C. 0 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.
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.