The Twistlock, cataloged under National Stock Number 3990-01-370-0751, is classified within Federal Supply Class 3990 (Miscellaneous Materials Handling Equipment) of the Materials Handling Equipment group. The manufacturer of record is Ulrich Attachments Limited. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3990-01-370-0751 |
| Primary Part Number | 87024A4001 |
| Item Name | Twistlock |
| FSC / FSG | 3990 / 39 — Miscellaneous Materials Handling Equipment |
| Manufacturer | Ulrich Attachments Limited |
| Status | ACTIVE |
| General Characteristics Item Description | TWISTLOCK C/O TEN MAJOR COMPONENTS: CAGE 80372 PN 87024A4134 PIVOT 1; CAGE 80372 PN 87024A4127 BODY 1; CAGE 80372 PN 87024A4128 RING 1; CAGE 80372 PN 87024A4129 STEM 1; CAGE 80372 PN 87024A0520 NUT 1; CAGE 80372 PN 87024A0521 HANDLE 1; CAGE 80372 PN 87024A0522 SLEEVE 1; CAGE 80372 PN 87024A0523 SPRING 1; CAGE 80372 PN 87024A0524 BALL 2; AND CAGE 80372 PN 87024A0535 GREASE NIPPLE 1 |
| 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 |
|---|---|
| 87024A4001 | Ulrich Attachments Limited (GBR) |
| Reference | Meaning |
|---|---|
| 87024A4001 | 5/9 Secondary reference Boughton Engineering Limited |
| 87024A4001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3990-01-370-0751 is a Twistlock, manufactured by Ulrich Attachments Limited, classified under FSC 3990, Miscellaneous Materials Handling Equipment. Status: active.
NSN 3990-01-370-0751 has 1 manufacturer part number on file: 87024A4001 (Ulrich Attachments Limited).
Key specifications for 87024A4001: General Characteristics Item Description: TWISTLOCK C/O TEN MAJOR COMPONENTS: CAGE 80372 PN 87024A4134 PIVOT 1; CAGE 80372 PN 87024A4127 BODY 1; CAGE 80372 PN 87024A4128 RING 1; CAGE 80372 PN 87024A4129 STEM 1; CAGE 80372 PN 87024A0520 NUT 1; CAGE 80372 PN 87024A0521 HANDLE 1; CAGE 80372 PN 87024A0522 SLEEVE 1; CAGE 80372 PN 87024A0523 SPRING 1; CAGE 80372 PN 87024A0524 BALL 2; AND CAGE 80372 PN 87024A0535 GREASE NIPPLE 1; End Item Identification: CONTAINER HAULER MK18. 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.