The Snap Hook, cataloged under National Stock Number 5340-01-583-4399, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rock Exotica. Government technical data includes 2 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 | 5340-01-583-4399 |
| Primary Part Number | M31-SL |
| Item Name | Snap Hook |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rock Exotica |
| Status | ACTIVE |
| Hook Style Designator | PIVOT |
| Material | STEEL HOOK |
| 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 |
|---|---|
| M31-SL PRIMARY | Rock Exotica (USA) |
NSN 5340-01-583-4399 is a Snap Hook, manufactured by Rock Exotica, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-583-4399 has 1 manufacturer part number on file: M31-SL (Rock Exotica).
Key specifications for M31-SL: Overall Length: 4.900 INCHES NOMINAL IN; Hook Style Designator: PIVOT; Special Features: MEASURMENTS IN INCHES: GATE OPEN, 1.200; SLEEVE DIA; 0.700, FRAME DIA; 0.44, MATERIAL; ALLOY STEEL, PLATED; Part Name Assigned by Controlling Agency: CARABINER, BRIGHT. 2 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.