The Holder,seal Ring, cataloged under National Stock Number 2840-00-738-8972, 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 The Wilkins Co Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Holder,seal Ring |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Manufacturers | The Wilkins Co Inc (CAGE 30483); Lnd Incorporated Dba Lnd Inc (CAGE 26237) |
| Parameter | Value |
|---|---|
| NSN | 2840-00-738-8972 |
| Primary Part Number | 395870 |
| Item Name | Holder,seal Ring |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | The Wilkins Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 395870 | The Wilkins Co Inc (USA) |
| 395870 | Lnd Incorporated Dba Lnd Inc (USA) |
| Reference | Meaning |
|---|---|
| 395870 | 3/9 Design control — primary reference Ssanford Tool & Design Inc |
| 395870 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 395870 | 5/9 Secondary reference Bdk Machine Co Inc |
NSN 2840-00-738-8972 is a Holder,seal Ring, manufactured by The Wilkins Co Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-738-8972 has 2 manufacturer part numbers on file: 395870 (The Wilkins Co Inc), 395870 (Lnd Incorporated Dba Lnd Inc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-353-9391. Verify interchangeability with system specifications before substitution.
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 2840-00-738-8972 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.