The Ring,hoist,safety, cataloged under National Stock Number 3940-01-326-4427, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-326-4427 |
| Item Name | Ring,hoist,safety |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Status | ACTIVE |
| General Characteristics Item Description | FORGED ALLOY STEEL HEATED AND CERTIFIED TO MIL-1-6868; BASE BLOCK ACTUATES 360 DEG.; LIFT RING PIVOTS 180 DEG. IN OFF-CENTER BASE SLOT ALLOWING THE RING TO BE SOLID CONSTRUCTION AND ASSURING THE BASE BLOCK ROTATING IN THE DIRECTION OF APPLIED LOAD; PIN CENTER TO BLOCK TOP 2 3/16 IN. NOM; RING RADIUS 1 3/8 IN. NOM; RING THICKNESS 5/8 IN. NOM; RING CENTERLINE AT BLOCK ATTACHMENT TO RING CENTER 2 3/4 IN. NOM; BLOCK THICKNESS 1 11/16 IN. NOM; BLOCK WIDTH 2 IN. NOM; PIN 3/4-10 THREAD-1 IN.NOM LG.; PIN CENTER TO BLOCK BOTTOM 1 IN. NOM; PIN CENTER TO BLOCK SIDE 1 IN. NOM; RING CENTERLINE AT BLOCK ATTACHMENT TO PIN'S LATERAL CENTERLINE 1 1/8IN. NOM; FOR LOADS TO 5000 LB. LBS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CL50SHR | 3/2 Design control — primary reference U.S. Government activity |
NSN 3940-01-326-4427 is a Ring,hoist,safety, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
Key specifications for 3940-01-326-4427: General Characteristics Item Description: FORGED ALLOY STEEL HEATED AND CERTIFIED TO MIL-1-6868; BASE BLOCK ACTUATES 360 DEG.; LIFT RING PIVOTS 180 DEG. IN OFF-CENTER BASE SLOT ALLOWING THE RING TO BE SOLID CONSTRUCTION AND ASSURING THE BASE BLOCK ROTATING IN THE DIRECTION OF APPLIED LOAD; PIN CENTER TO BLOCK TOP 2 3/16 IN. NOM; RING RADIUS 1 3/8 IN. NOM; RING THICKNESS 5/8 IN. NOM; RING CENTERLINE AT BLOCK ATTACHMENT TO RING CENTER 2 3/4 IN. NOM; BLOCK THICKNESS 1 11/16 IN. NOM; BLOCK WIDTH 2 IN. NOM; PIN 3/4-10 THREAD-1 IN.NOM LG.; PIN CENTER TO BLOCK BOTTOM 1 IN. NOM; PIN CENTER TO BLOCK SIDE 1 IN. NOM; RING CENTERLINE AT BLOCK ATTACHMENT TO PIN'S LATERAL CENTERLINE 1 1/8IN. NOM; FOR LOADS TO 5000 LB. LBS. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.