The Roller, cataloged under National Stock Number 1015-01-174-4292, is classified within Federal Supply Class 1015 (Guns, 75mm Through 125mm) of the Weapons group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1015-01-174-4292 |
| Primary Part Number | 5521171 |
| Item Name | Roller |
| FSC / FSG | 1015 / 10 — Guns, 75mm Through 125mm |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | OUTSIDE DIA 42.0 MM,THICKNESS 20.0 MM,INSIDE DIA ONE SIDE 20.0 MM TO A DEPTH OF 14.0 MM,SECOND SIDE INSIDE DIA 31.0 MM TO A DEPTH OF 6.0 MM MM |
| 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 |
|---|---|
| 5521171 PRIMARY | Naval Sea Systems Command (USA) |
| 1276-07-245 | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| 1015PL0821954 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 1015-01-174-4292 is a Roller, manufactured by Naval Sea Systems Command, classified under FSC 1015, Guns, 75mm Through 125mm. Status: active.
NSN 1015-01-174-4292 has 2 manufacturer part numbers on file: 5521171 (Naval Sea Systems Command), 1276-07-245 (Bae Systems Land & Armaments L.p.).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-445-5998. Verify interchangeability with system specifications before substitution.
Key specifications for 5521171: General Characteristics Item Description: OUTSIDE DIA 42.0 MM,THICKNESS 20.0 MM,INSIDE DIA ONE SIDE 20.0 MM TO A DEPTH OF 14.0 MM,SECOND SIDE INSIDE DIA 31.0 MM TO A DEPTH OF 6.0 MM MM. 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.