The Wrench,breech Cap, cataloged under National Stock Number 5120-00-021-5278, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-021-5278 |
| Item Name | Wrench,breech Cap |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | ITEM CONSISTS OF 1 EA ADAPTER HEXSHAPED 0.532 IN. ACROSS FLATS,1 1/2 IN. LG.,2 EA PINS ON ONE END 180 DEG. APART 0.955 TO 0.960 IN. DIA,STEEL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 68C34499-10 | 3/2 Design control — primary reference U.S. Government activity |
| 5120PL0911659 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5120-00-021-5278 is a Wrench,breech Cap, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
Key specifications for 5120-00-021-5278: General Characteristics Item Description: ITEM CONSISTS OF 1 EA ADAPTER HEXSHAPED 0.532 IN. ACROSS FLATS,1 1/2 IN. LG.,2 EA PINS ON ONE END 180 DEG. APART 0.955 TO 0.960 IN. DIA,STEEL 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.