The Seal,gun Barrel Air, cataloged under National Stock Number 5330-00-323-3231, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-323-3231 |
| Primary Part Number | 4445165-503 |
| Item Name | Seal,gun Barrel Air |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| General Characteristics Item Description | CRES 18-8 ANNEALED; ITEM IS TAPERED; 4.688 IN. LG; 3.344 FLANGE DIA; 2.156 IN. DIA THIN END; WITH A SLOPE OF 3 DEG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4445165-503 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 4445165-503 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-00-323-3231 is a Seal,gun Barrel Air, manufactured by The Boeing Company, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-323-3231 has 1 manufacturer part number on file: 4445165-503 (The Boeing Company).
Key specifications for 4445165-503: General Characteristics Item Description: CRES 18-8 ANNEALED; ITEM IS TAPERED; 4.688 IN. LG; 3.344 FLANGE DIA; 2.156 IN. DIA THIN END; WITH A SLOPE OF 3 DEG IN. 1 specification is 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 5330-00-323-3231 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.