The Sling,beam Type, cataloged under National Stock Number 3940-01-479-0590, is classified within Federal Supply Class 3940 (Blocks, Tackle, Rigging, and Slings) of the Materials Handling Equipment group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3940-01-479-0590 |
| Primary Part Number | PWA56817 |
| Item Name | Sling,beam Type |
| FSC / FSG | 3940 / 39 — Blocks, Tackle, Rigging, and Slings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Beam Overall Height | 4.000 INCHES NOMINAL IN |
| Attachment Type | SCREW PIN ANCHOR SHACKLE, STYLE 25 TOP TERMINAL 1ST VARIATION |
| Attachment Type | SCREW PIN ANCHOR SHACKLE, STYLE 25 TOP TERMINAL 2ND VARIATION |
| Loop Inside Circumference | 2.000 FEET NOMINAL FT |
| Design Type | MULTIPLE LEG |
| Leg Length and Quantity | ALL LEGS 24 INCHES IN |
| Quantity | 3 TOP TERMINAL 1ST VARIATION |
| Quantity | 3 TOP TERMINAL 2ND VARIATION |
| Attachment Style Dimensions | 1.000 INCHES NOMINAL INSIDE WIDTH BETWEEN EYES AND 0.500 INCHES NOMINAL PIN DIAMETER IN |
| Sling Material Type | FIBER ROPE |
| Adjustability | ADJUSTABLE |
| Loop Quantity | 3 |
| Beam Overall Length | 63.000 INCHES NOMINAL IN |
| Beam to Hoisting Apparatus Attachment Type and Quantity | 1 BRACKET, LIFTING |
| Material | STEEL |
| Beam to Load Attachment Type and Quantity | 3 SHACKLE |
| Beam Overall Width | 3.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PWA56817 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 3940PL0919403 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 3940-01-479-0590 is a Sling,beam Type, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3940, Blocks, Tackle, Rigging, and Slings. Status: active.
NSN 3940-01-479-0590 has 1 manufacturer part number on file: PWA56817 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for PWA56817: Beam Overall Height: 4.000 INCHES NOMINAL IN; Attachment Type: SCREW PIN ANCHOR SHACKLE, STYLE 25 TOP TERMINAL 1ST VARIATION; Attachment Type: SCREW PIN ANCHOR SHACKLE, STYLE 25 TOP TERMINAL 2ND VARIATION; Loop Inside Circumference: 2.000 FEET NOMINAL FT. 17 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.
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.