The Plate,retaining,seal, cataloged under National Stock Number 5340-01-495-7931, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-495-7931 |
| Primary Part Number | 561-6985067-26 |
| Item Name | Plate,retaining,seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Hole Quantity | 6 |
| Overall Diameter | 23.308 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED COUNTERSUNK MOUNTING HOLES |
| Overall Thickness | 2.000 INCHES NOMINAL IN |
| Shape | ROUND |
| Material | NICKEL ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 561-6985067-26 PRIMARY | Naval Sea Systems Command (USA) |
| 561-6985067--27 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H511-0103-26 | 5/2 Secondary reference U.S. Government activity |
| H511-0103-27 | 5/2 Secondary reference U.S. Government activity |
| 6895067 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5340-01-495-7931 is a Plate,retaining,seal, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-495-7931 has 2 manufacturer part numbers on file: 561-6985067-26 (Naval Sea Systems Command), 561-6985067--27 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-495-7948. Verify interchangeability with system specifications before substitution.
Key specifications for 561-6985067-26: Mounting Hole Quantity: 6; Overall Diameter: 23.308 INCHES NOMINAL IN; Mounting Method: UNTHREADED COUNTERSUNK MOUNTING HOLES; Overall Thickness: 2.000 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.