The Connecting Link,rigid, cataloged under National Stock Number 3040-00-221-8846, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is New Hampshire Ball Bearings Inc Div Astro Division. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-221-8846 |
| Primary Part Number | ALK4-37 |
| Item Name | Connecting Link,rigid |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | New Hampshire Ball Bearings Inc Div Astro Division |
| Status | ACTIVE |
| Body Construction | SOLID |
| Link Style | EYE ENDS |
| Body Width | 0.375 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Body Thickness | 0.312 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 |
|---|---|
| ALK4-37 PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| Reference | Meaning |
|---|---|
| 206-010-710-3 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 3040-00-221-8846 is a Connecting Link,rigid, manufactured by New Hampshire Ball Bearings Inc Div Astro Division, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-221-8846 has 1 manufacturer part number on file: ALK4-37 (New Hampshire Ball Bearings Inc Div Astro Division).
Key specifications for ALK4-37: Body Construction: SOLID; Link Style: EYE ENDS; Body Width: 0.375 INCHES NOMINAL IN; Overall Length: 5.300 INCHES MINIMUM AND 5.310 INCHES MAXIMUM IN. 5 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 3040-00-221-8846 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.