The Key Set,socket Head Screw, cataloged under National Stock Number 5120-01-280-1331, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Bondhus Corp. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-280-1331 |
| Primary Part Number | BLX9MM |
| Item Name | Key Set,socket Head Screw |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Bondhus Corp |
| Status | ACTIVE |
| Handle Type | L-STYLE |
| Key Characteristic | CONTAINS HEX KEYS SIZE 1.5, 2, 2.5, 3, 4, 5, 6, 8 AND 10MM MM |
| Features Provided | LONG SERIES AND BALL END |
| Key Quantity | 9 |
| Specification/standard Data | 05047-ASME B18.3.2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Container Type | CASE |
| 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 |
|---|---|
| BLX9MM | Bondhus Corp (USA) |
| 91570849 | Thales Sa (FRA) |
| Reference | Meaning |
|---|---|
| 18322 | C/1 Advisory reference — outside the item-of-supply concept Tecra Industries, Inc. Dba Tecra Industries Inc Div Tecra Tools |
| B18.3.2 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5120-01-280-1331 is a Key Set,socket Head Screw, manufactured by Bondhus Corp, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-280-1331 has 2 manufacturer part numbers on file: BLX9MM (Bondhus Corp), 91570849 (Thales Sa).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-400-1054, 5133-01-438-7753. Verify interchangeability with system specifications before substitution.
Key specifications for BLX9MM: Handle Type: L-STYLE; Key Characteristic: CONTAINS HEX KEYS SIZE 1.5, 2, 2.5, 3, 4, 5, 6, 8 AND 10MM MM; Features Provided: LONG SERIES AND BALL END; Key Quantity: 9. 6 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.