The Snap Hook, cataloged under National Stock Number 5340-01-055-4340, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-055-4340 |
| Item Name | Snap Hook |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Unattached Ring | NOT INCLUDED |
| Design Type | FIXED |
| End Position | HOOKS IN SAME PLANE |
| Hook Style Designator | SLIDING BOLT |
| Material | IRON MALLEABLE CONNECTION END |
| Material | IRON MALLEABLE HOOK |
| Rubber Covered Feature | NOT INCLUDED |
| 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 |
| Reference | Meaning |
|---|---|
| M43770/14-MIZ2 | 3/2 Design control — primary reference U.S. Government activity |
| MIL-S-43770/14 | 5/9 Secondary reference U.S. Government activity |
| NASM43770/14 | 3/1 Design control — primary reference U.S. Government activity |
| M43770-14-MIZ2 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-055-4340 is a Snap Hook, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5340-01-106-0458. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-055-4340: Unattached Ring: NOT INCLUDED; Design Type: FIXED; Overall Length: 6.562 INCHES NOMINAL IN; End Position: HOOKS IN SAME PLANE. 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.