The Seal,structural,missile, cataloged under National Stock Number 5330-01-212-1015, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-212-1015 |
| Primary Part Number | 55544-03 |
| Item Name | Seal,structural,missile |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory |
| Status | ACTIVE |
| General Characteristics Item Description | NUCLEAR HARDNESS CRITICAL ITEM; ICBM |
| Criticality Code Justification | TEXT |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | M |
| Part Number | Manufacturer |
|---|---|
| 55544-03 PRIMARY | Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory (USA) |
| Reference | Meaning |
|---|---|
| 55544-01 | 5/9 Secondary reference Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory |
NSN 5330-01-212-1015 is a Seal,structural,missile, manufactured by Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-212-1015 has 1 manufacturer part number on file: 55544-03 (Atk Launch Systems Llc Dba Atk Launch Systems-Promontory Div Propulsion Systems - Promontory).
2 possible matches (shared part number, not a government interchangeability claim): 5980-01-317-5793, 5980-01-335-7274. Verify interchangeability with system specifications before substitution.
Key specifications for 55544-03: Overall Height: 1.330 INCHES NOMINAL IN; General Characteristics Item Description: NUCLEAR HARDNESS CRITICAL ITEM; ICBM; Criticality Code Justification: TEXT; Overall Length: 7.720 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5330-01-212-1015 has DEMIL Code Q. 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.