The Expander,piston Ring, cataloged under National Stock Number 5120-01-336-0788, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-336-0788 |
| Primary Part Number | PRS10 |
| Item Name | Expander,piston Ring |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc |
| Status | ACTIVE |
| Ring Diameter Accommodated | 2.750 INCHES MINIMUM AND 4.250 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 |
|---|---|
| PRS10 PRIMARY | Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA) |
| Reference | Meaning |
|---|---|
| 5120PL2059828 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5120-01-336-0788 is a Expander,piston Ring, 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 5120-01-336-0788 has 1 manufacturer part number on file: PRS10 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc).
1 possible match (shared part number, not a government interchangeability claim): 5955-01-566-6631. Verify interchangeability with system specifications before substitution.
Key specifications for PRS10: Ring Diameter Accommodated: 2.750 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN. 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.