The Plate,seal Retaining, cataloged under National Stock Number 2995-01-139-2272, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2995-01-139-2272 |
| Primary Part Number | 2493747 |
| Item Name | Plate,seal Retaining |
| FSC / FSG | 2995 / 29 — Miscellaneous Engine Accessories, Aircraft |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM AMS4027,ANODIZE MIL-A-8625,TYPE 2,2.720 IN. MIN,2.725 IN. MAX OD,1.619 IN. MIN,1.629 IN. MAX ID,0.055 IN. MIN,0.065 IN. MAX W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2493747 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 10159202 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2493747 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2995-01-139-2272 is a Plate,seal Retaining, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2995, Miscellaneous Engine Accessories, Aircraft. Status: active.
NSN 2995-01-139-2272 has 1 manufacturer part number on file: 2493747 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 2493747: General Characteristics Item Description: ALUMINUM AMS4027,ANODIZE MIL-A-8625,TYPE 2,2.720 IN. MIN,2.725 IN. MAX OD,1.619 IN. MIN,1.629 IN. MAX ID,0.055 IN. MIN,0.065 IN. MAX W IN; End Item Identification: CH-53E AIRCRAFT. 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.
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.