The Cover,access, cataloged under National Stock Number 5340-00-787-3331, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 12 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-787-3331 |
| Primary Part Number | 56C25 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Hole Quantity Along Length | 3 |
| Distance Between Hole Centers | 0.750 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | FLAT |
| Outside Diameter | 1.100 INCHES NOMINAL IN |
| Bolt Hole Centerline to Nearest Edge Distance | 0.102 INCHES NOMINAL IN |
| Features Provided | OBSERVATION FACILITY |
| Securing Device Type | THREADED FASTENER |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | STEEL CORROSION RESISTING |
| Hole Diameter | 0.147 INCHES NOMINAL IN |
| Body Thickness | 0.126 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 56C25 PRIMARY | Grimes Aerospace Company (USA) |
NSN 5340-00-787-3331 is a Cover,access, manufactured by Grimes Aerospace Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-787-3331 has 1 manufacturer part number on file: 56C25 (Grimes Aerospace Company).
Key specifications for 56C25: Hole Quantity Along Length: 3; Distance Between Hole Centers: 0.750 INCHES NOMINAL IN; Mounting Opening Shape Style: UNTHREADED HOLE; Cross-Sectional Shape Style: FLAT. 12 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.