The Seal Ring,bearing, cataloged under National Stock Number 2840-01-131-4756, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Kaydon Ring & Seal Inc Dba Skf Precision Technologies. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-131-4756 |
| Primary Part Number | 4054T98P02 |
| Item Name | Seal Ring,bearing |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON,AMS7310; 7.425 IN. MIN 7.426 IN. MAX OD; 7.315 IN. MIN,7.326 IN. MAX ID; WALL THK 0.100 IN. MIN,0.110 IN. MAX; 0.118 IN. MIN,0.121 IN. MAX W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4054T98P02 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| Reference | Meaning |
|---|---|
| A7462 | 5/1 Secondary reference Kaydon Ring & Seal Inc Dba Skf Precision Technologies |
| 4054T98 | D/9 Drawing number reference only U.S. Government activity |
| 4054T98P02 | 3/2 Design control — primary reference U.S. Government activity |
| 10158506 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 4054T98P02 99207 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 2840-01-131-4756 is a Seal Ring,bearing, manufactured by Kaydon Ring & Seal Inc Dba Skf Precision Technologies, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-131-4756 has 1 manufacturer part number on file: 4054T98P02 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).
1 possible match (shared part number, not a government interchangeability claim): 2840-01-150-6659. Verify interchangeability with system specifications before substitution.
Key specifications for 4054T98P02: General Characteristics Item Description: CAST IRON,AMS7310; 7.425 IN. MIN 7.426 IN. MAX OD; 7.315 IN. MIN,7.326 IN. MAX ID; WALL THK 0.100 IN. MIN,0.110 IN. MAX; 0.118 IN. MIN,0.121 IN. MAX W IN; End Item Identification: ENGINE MODEL F404-GE-400. 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 2840-01-131-4756 has DEMIL Code Q. 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.