The Seal Assembly, cataloged under National Stock Number 1440-00-673-7815, is classified within Federal Supply Class 1440 (Launchers, Guided Missile) of the Guided Missiles group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1440-00-673-7815 |
| Primary Part Number | 1656273 |
| Item Name | Seal Assembly |
| FSC / FSG | 1440 / 14 — Launchers, Guided Missile |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | P/N 1807380, 1807370 |
| General Characteristics Item Description | ASSY CONSIST OF: RETAINER 1656258; SEAL 1656255; WIPER 1656275; BACK-UP STRIP 1656251; 17 RIVETS |
| 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 |
|---|---|
| 1656273 | Wynnson Enterprises, Inc. (USA) |
| 1656273 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1656273 | 5/9 Secondary reference U.S. Government activity |
| 1656273 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 1656273 | 5/2 Secondary reference U.S. Government activity |
| 1656273 | 5/9 Secondary reference Forway Industries Inc |
NSN 1440-00-673-7815 is a Seal Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1440, Launchers, Guided Missile. Status: active.
NSN 1440-00-673-7815 has 2 manufacturer part numbers on file: 1656273 (Wynnson Enterprises, Inc.), 1656273 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1656273: FSC Application Data: P/N 1807380, 1807370; General Characteristics Item Description: ASSY CONSIST OF: RETAINER 1656258; SEAL 1656255; WIPER 1656275; BACK-UP STRIP 1656251; 17 RIVETS; Special Features: RIGHT HAND; 17 MOUNTING HOLES EQUALLY SPACED ON STRIP. 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.
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.