The Cover,access, cataloged under National Stock Number 5340-01-533-4364, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Flextron Industries, Inc. Div Flextron Industries. Government technical data includes 8 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-533-4364 |
| Primary Part Number | 17C057-3 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Flextron Industries, Inc. Div Flextron Industries |
| Status | ACTIVE |
| Cross-Sectional Shape Style | FLAT |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Bolt Hole Centerline to Nearest Edge Distance | 0.989 INCHES NOMINAL IN |
| Securing Device Type | THREADED FASTENER |
| Specification/standard Data | 81343 - SAE AS5135 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | II TYPE AND I CLASS |
| Peripheral Shape Style | ROUND, ONE HOLE |
| Body Thickness | 0.830 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 17C057-3 PRIMARY | Flextron Industries, Inc. Div Flextron Industries (USA) |
NSN 5340-01-533-4364 is a Cover,access, manufactured by Flextron Industries, Inc. Div Flextron Industries, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-533-4364 has 1 manufacturer part number on file: 17C057-3 (Flextron Industries, Inc. Div Flextron Industries).
Key specifications for 17C057-3: Cross-Sectional Shape Style: FLAT; Outside Diameter: 4.000 INCHES NOMINAL IN; Bolt Hole Centerline to Nearest Edge Distance: 0.989 INCHES NOMINAL IN; Securing Device Type: THREADED FASTENER. 8 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.