The Wrench,open End Box, cataloged under National Stock Number 5120-01-306-3239, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-306-3239 |
| Primary Part Number | RX44A |
| Item Name | Wrench,open End Box |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Wrenching Surface Size | 1.375 INCHES NOMINAL SINGLE END IN |
| Style Designator | FLARE NUT SINGLE END |
| Specification/standard Data | 81343-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 2 TYPE AND 2 CLASS AND D STYLE AND 1-3/8 SIZE |
| Wrenching Surface Shape | 12 POINT SINGLE END INTERNAL |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL OVERALL |
| Head Thickness | 0.890 INCHES MAXIMUM IN |
| 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 |
|---|---|
| RX44A | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| AS4167 | 3/9 Design control — primary reference U.S. Government activity |
| AS4167 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS4167 TY2CL2STD | 5/1 Secondary reference U.S. Government activity |
NSN 5120-01-306-3239 is a Wrench,open End Box, 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 5120-01-306-3239 has 1 manufacturer part number on file: RX44A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
Key specifications for RX44A: Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN; Style Designator: FLARE NUT SINGLE END; Overall Length: 12.500 INCHES NOMINAL IN; Specification/standard Data: 81343-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 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.