The Clip,retaining, cataloged under National Stock Number 5340-00-328-9199, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-328-9199 |
| Primary Part Number | BC446-5 |
| Item Name | Clip,retaining |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Style Designator | PIN |
| Material Document and Classification | AMS 5688 ASSN STD 1ST MATERIAL RESPONSE OR 35, ASSOCIATED SPRING CORP MFR REF 2ND MATERIAL RESPONSE OR 18-2MN, ARMCO STEEL CORP MFR REF 3RD MATERIAL RESPONSE |
| Stock Diameter | 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Surface Treatment | PASSIVATE |
| Width | 0.631 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OR STEEL OR STEEL COMP XM-28 |
| 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 |
|---|---|
| BC446-5 PRIMARY | Bristol Industries, Llc (USA) |
| K49300-5 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| ST3M446-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 9421B05 | 5/9 Secondary reference Harvard Industries Inc |
| NS202041-3-054 | 3/2 Design control — primary reference U.S. Government activity |
| 10117338 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| F49249-5W | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| 9421B05 | 3/2 Design control — primary reference U.S. Government activity |
| K49300-5 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
NSN 5340-00-328-9199 is a Clip,retaining, manufactured by Bristol Industries, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-328-9199 has 2 manufacturer part numbers on file: BC446-5 (Bristol Industries, Llc), K49300-5 (Howmet Global Fastening Systems Inc).
Key specifications for BC446-5: Overall Height: 0.686 INCHES NOMINAL IN; Style Designator: PIN; Material Document and Classification: AMS 5688 ASSN STD 1ST MATERIAL RESPONSE OR 35, ASSOCIATED SPRING CORP MFR REF 2ND MATERIAL RESPONSE OR 18-2MN, ARMCO STEEL CORP MFR REF 3RD MATERIAL RESPONSE; Stock Diameter: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN. 7 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.