The Cover,access, cataloged under National Stock Number 5340-00-966-6521, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Spacecraft Engineering Co Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-966-6521 |
| Primary Part Number | 41506 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — No Item Name Available |
| Manufacturer | Spacecraft Engineering Co Inc |
| Status | ACTIVE |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Hole Diameter | 0.202 INCHES MINIMUM AND 0.207 INCHES MAXIMUM IN |
| Bolt Circle Hole Quantity | 6 |
| Bolt Circle Diameter | 3.312 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-601,T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Flange Thickness | 0.220 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| Inside Corner Radius | 0.020 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Inside Diameter | 1.000 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 356.0 |
| Peripheral Shape Style | ROUND, MULTIEARS AND HOLES |
| First Recess Inside Height | 0.625 INCHES NOMINAL IN |
| Features Provided | OBSERVATION FACILITY |
| Securing Device Type | THREADED FASTENER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Unit of Issue | EA |
NSN 5340-00-966-6521 is a Cover,access, manufactured by Spacecraft Engineering Co Inc, classified under FSC 5340 (No Item Name Available). Status: active.
NSN 5340-00-966-6521 has 2 cross-referenced part numbers: 41506 (Spacecraft Engineering Co Inc), 41506 (Tison Engineering Inc).
There are 7 known substitutes for 5340-00-966-6521: 4910-00-695-9625, 5110-00-884-0140, 5310-01-029-3759 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 41506: Mounting Opening Shape Style: UNTHREADED HOLE; Hole Diameter: 0.202 INCHES MINIMUM AND 0.207 INCHES MAXIMUM IN; Bolt Circle Hole Quantity: 6; Bolt Circle Diameter: 3.312 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.