The Screw Assembly, cataloged under National Stock Number 1720-01-144-4077, is classified within Federal Supply Class 1720 (Aircraft Launching Equipment) of the Aircraft Launch, Landing, and Ground Handling Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1720-01-144-4077 |
| Item Name | Screw Assembly |
| FSC / FSG | 1720 / 17 — Aircraft Launching Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,MIL-S-5626,COMP 4140 OR MIL-S-5000,COMP E4340 SHAFT; STEEL,MIL-S-8690,COMP 8620 ROLLER; 0.531 IN. DIA 10 HOLES EQUALLY SPACED,0.375-24 UNF-2B THD 2 PLACES ON ROLLER IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 622225-1 | C/1 Advisory reference — outside the item-of-supply concept Skf Usa Inc. |
| 622225-1 | 3/9 Design control — primary reference Skf Component Systems Inc |
| 622225-1 | 1/2 Source control — Government-approved source U.S. Government activity |
| SRCZ 80X19.05 R6L3345P 30TL 3651 | 5/9 Secondary reference U.S. Government activity |
NSN 1720-01-144-4077 is a Screw Assembly, classified under FSC 1720, Aircraft Launching Equipment. Status: active.
Key specifications for 1720-01-144-4077: General Characteristics Item Description: STEEL,MIL-S-5626,COMP 4140 OR MIL-S-5000,COMP E4340 SHAFT; STEEL,MIL-S-8690,COMP 8620 ROLLER; 0.531 IN. DIA 10 HOLES EQUALLY SPACED,0.375-24 UNF-2B THD 2 PLACES ON ROLLER IN; End Item Identification: CATAPULT. 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.