The Lock Assembly,pneumatic, cataloged under National Stock Number 1440-01-411-2837, is classified within Federal Supply Class 1440 (Launchers, Guided Missile) of the Guided Missiles 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1440-01-411-2837 |
| Primary Part Number | 751-6402350-AY91 |
| Item Name | Lock Assembly,pneumatic |
| FSC / FSG | 1440 / 14 — Launchers, Guided Missile |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 751-6402350-AY91 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 751-6402302 ITEM 32 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 211033485 | 5/9 Secondary reference Naval Sea Systems Command |
| 751-6402302 FIND 32 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 751-6402302-32 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 1440-01-411-2837 is a Lock Assembly,pneumatic, manufactured by Naval Sea Systems Command, classified under FSC 1440, Launchers, Guided Missile. Status: active.
NSN 1440-01-411-2837 has 1 manufacturer part number on file: 751-6402350-AY91 (Naval Sea Systems Command).
Key specifications for 751-6402350-AY91: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: WEAPON SYSTEMS-LEVEL 1/SUBSAFE; SEAWOLF CLASS SSN. 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.
NSN 1440-01-411-2837 has DEMIL Code B. 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.