The Sling,beam Type, cataloged under National Stock Number 3940-00-999-7579, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba. Government technical data includes 21 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.
| Parameter | Value |
|---|---|
| NSN | 3940-00-999-7579 |
| Primary Part Number | 72634-1 |
| Item Name | Sling,beam Type |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba |
| Status | ACTIVE |
| Beam Overall Height | 4.000 INCHES NOMINAL IN |
| Attachment Type | ANCHOR SHACKLE, STYLE 15 BOTTOM TERMINAL |
| Attachment Type | ANCHOR SHACKLE, STYLE 15 INTERMEDIATE ATTACHMENT |
| Attachment Type | ANCHOR SHACKLE, STYLE 15 TOP TERMINAL |
| Design Type | MULTIPLE LEG |
| Leg Length and Quantity | 4 LEGS,2 LEGS 46-1/2 IN. BETWEEN TERMINAL BEARING SURFACES,2 LEGS 28 IN. BETWEEN TERMINAL BEARING SURFACES IN |
| Overall Thickness | 0.500 INCHES NOMINAL IN |
| Quantity | 1 BOTTOM TERMINAL |
| Quantity | 3 TOP TERMINAL |
| Quantity | 4 INTERMEDIATE ATTACHMENT |
| Attachment Style Dimensions | 0.050 INCHES MINIMUM PIN DIAMETER AND 0.250 INCHES MAXIMUM PIN DIAMETER AND 1.000 INCHES MINIMUM BEARING SURFACE TO BEARING SURFACE DISTANCE AND 1.125 INCHES MAXIMUM BEARING SURFACE TO BEARING SURFACE DISTANCE AND 0.500 INCHES NOMINAL INSIDE WIDTH BETWEEN EYES AND 0.500 INCHES NOMINAL INSIDE WIDTH BETWEEN EYES AND 0.500 INCHES NOMINAL INSIDE WIDTH BETWEEN EYES AND 0.250 INCHES NOMINAL PIN DIAMETER AND 1.125 INCHES NOMINAL BEARING SURFACE TO BEARING SURFACE DISTANCE IN |
| Sling Material Type | WIRE ROPE |
| Stock Size and Location | 3/8 IN. MATERIAL SIZE TOP TERMINAL,5/16 IN. MATERIAL SIZE INTERMEDIATE TERMINAL,5/16 IN. MATERIAL SIZE BOTTOM TERMINAL IN |
| Adjustability | NONADJUSTABLE |
| Beam Overall Length | 36.000 INCHES NOMINAL IN |
| Cross Section Outside Diameter | 0.250 INCHES NOMINAL IN |
| Beam to Hoisting Apparatus Attachment Type and Quantity | 2 SHACKLE, RIGIDLY ATTACHED TO BEAM |
| Material | STEEL |
| Furnished Items | SLING SPREADER |
| Beam to Load Attachment Type and Quantity | 4 SHACKLE |
| Beam Overall Width | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 72634-1 PRIMARY | Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA) |
NSN 3940-00-999-7579 is a Sling,beam Type, manufactured by Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-00-999-7579 has 1 manufacturer part number on file: 72634-1 (Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba).
Key specifications for 72634-1: Beam Overall Height: 4.000 INCHES NOMINAL IN; Attachment Type: ANCHOR SHACKLE, STYLE 15 BOTTOM TERMINAL; Attachment Type: ANCHOR SHACKLE, STYLE 15 INTERMEDIATE ATTACHMENT; Attachment Type: ANCHOR SHACKLE, STYLE 15 TOP TERMINAL. 21 specifications are 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.
NSN 3940-00-999-7579 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.