The Wrench,ratchet, cataloged under National Stock Number 5120-01-075-3768, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5120-01-075-3768 |
| Primary Part Number | R1820A |
| Item Name | Wrench,ratchet |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Large End Head Thickness | 0.500 INCHES NOMINAL IN |
| Small End Head Thickness | 0.500 INCHES NOMINAL IN |
| Wrenching Surface Size | 0.625 INCHES NOMINAL SECOND END IN |
| Wrenching Surface Size | 0.375 INCHES NOMINAL FIRST END IN |
| Style Designator | STRAIGHT DOUBLE HEAD |
| Departure From Cited Document | AS MODIFIED BY O/A LG |
| Surface Treatment | CHROMIUM AND NICKEL OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| R1820A PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| R1820 | 5/9 Secondary reference Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| RB-1820 | 5/9 Secondary reference Trw Inc Hand Tools Div Trw Industrial Products Group |
| RB-1820 | 5/9 Secondary reference Grove U.s. Llc Dba Grove Us Llc |
| GGG-W-001405 | 4/1 Identification reference U.S. Government activity |
NSN 5120-01-075-3768 is a Wrench,ratchet, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-075-3768 has 1 manufacturer part number on file: R1820A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5120-01-076-2386, 5120-01-167-7657. Verify interchangeability with system specifications before substitution.
Key specifications for R1820A: Large End Head Thickness: 0.500 INCHES NOMINAL IN; Small End Head Thickness: 0.500 INCHES NOMINAL IN; Wrenching Surface Size: 0.625 INCHES NOMINAL SECOND END IN; Wrenching Surface Size: 0.375 INCHES NOMINAL FIRST END IN. 8 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.