The Breech Mechanism, cataloged under National Stock Number 1035-01-451-3534, is classified within Federal Supply Class 1035 (Guns, Over 300mm) of the Weapons group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1035-01-451-3534 |
| Primary Part Number | 751-6402007 ITEM 2L1 |
| Item Name | Breech Mechanism |
| FSC / FSG | 1035 / 10 — Guns, Over 300mm |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 751-6402007 ITEM 2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 211029483L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 751-6402001 ITEM 2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 751-6402201 ASSEMBLY 97L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 751-6402003 ITEM 2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 751-6402005 ITEM 2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 751-6402005 ITEM 2 | 5/1 Secondary reference Naval Sea Systems Command |
| 751-6402001 ITEM 2 | 5/1 Secondary reference Naval Sea Systems Command |
| 211029483 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 751-6402003 ITEM 2 | 5/1 Secondary reference Naval Sea Systems Command |
| 751-6402007 ITEM 2 | 5/1 Secondary reference Naval Sea Systems Command |
| 751-6402201 ASSEMBLY 97 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 1035-01-451-3534 is a Breech Mechanism, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 1035, Guns, Over 300mm. Status: active.
NSN 1035-01-451-3534 has 6 manufacturer part numbers on file: 751-6402007 ITEM 2L1 (Naval Inventory Control Point Mechanicsburg), 211029483L1 (Naval Inventory Control Point Mechanicsburg), 751-6402001 ITEM 2L1 (Naval Inventory Control Point Mechanicsburg), 751-6402201 ASSEMBLY 97L1 (Naval Inventory Control Point Mechanicsburg), 751-6402003 ITEM 2L1 (Naval Inventory Control Point Mechanicsburg) and 1 more.
Key specifications for 751-6402007 ITEM 2L1: Criticality Code Justification: ZZZY; End Item Identification: TORPEDO TUBE,SUBMERGED,UPR RH,MK69,MOD 1; Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 2 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.
NSN 1035-01-451-3534 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.