The Retainer,nut and Bolt, cataloged under National Stock Number 5340-01-197-8201, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Avtron Aerospace Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-197-8201 |
| Primary Part Number | 520363 |
| Item Name | Retainer,nut and Bolt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Avtron Aerospace Inc |
| Status | ACTIVE |
| Style Designator | CLIP |
| Material Thickness | 0.020 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE |
| Material | STEEL |
| 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 |
|---|---|
| 520363 PRIMARY | Avtron Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| C7931-632-4 | 5/9 Secondary reference Tinnerman Palnut Engineered Products, Inc. |
| 500K3297 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5340-01-197-8201 is a Retainer,nut and Bolt, manufactured by Avtron Aerospace Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-197-8201 has 1 manufacturer part number on file: 520363 (Avtron Aerospace Inc).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-562-0632. Verify interchangeability with system specifications before substitution.
Key specifications for 520363: Overall Height: 0.370 INCHES NOMINAL IN; Style Designator: CLIP; Overall Length: 0.531 INCHES NOMINAL IN; Overall Width: 0.520 INCHES NOMINAL IN. 4 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.