The Seal,nonmetallic Round Section, cataloged under National Stock Number 5330-00-448-4571, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-448-4571 |
| Primary Part Number | PK1284 |
| Item Name | Seal,nonmetallic Round Section |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Special Test Features | NOME |
| Style Designator | CIRCULAR |
| Material Document and Classification | AMS 3227 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | CIRCULAR |
| Aperture Diameter | 52.726 INCHES MINIMUM AND 52.875 INCHES MAXIMUM IN |
| Cross Section Outside Diameter | 0.562 INCHES MINIMUM AND 0.637 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Fabrication Method | SOLID |
| Construction | SPLIT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PK1284 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| Reference | Meaning |
|---|---|
| 3-05855-196 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5330-00-448-4571 is a Seal,nonmetallic Round Section, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-448-4571 has 1 manufacturer part number on file: PK1284 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).
Key specifications for PK1284: Special Test Features: NOME; Style Designator: CIRCULAR; Material Document and Classification: AMS 3227 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: CIRCULAR. 9 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.
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.