The Guide,seal Retaining, cataloged under National Stock Number 2995-01-139-2273, is classified within Federal Supply Class 2995 (Miscellaneous Engine Accessories, Aircraft) of the Engine Accessories group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2995-01-139-2273 |
| Primary Part Number | 2493764 |
| Item Name | Guide,seal Retaining |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| General Characteristics Item Description | GLASS FILLED POLYTETRAFLUOROETHYLENE,1.9982 IN. MIN,1.9992 IN. MAX OD,0.430 IN THK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2493764 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 10159203 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2493764 | 5/2 Secondary reference U.S. Government activity |
NSN 2995-01-139-2273 is a Guide,seal Retaining, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
NSN 2995-01-139-2273 has 1 manufacturer part number on file: 2493764 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 2493764: General Characteristics Item Description: GLASS FILLED POLYTETRAFLUOROETHYLENE,1.9982 IN. MIN,1.9992 IN. MAX OD,0.430 IN THK IN. 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 2995-01-139-2273 has DEMIL Code B. 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.