The Gasket,spiral Wound, cataloged under National Stock Number 5330-00-879-0840, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-00-879-0840 |
| Primary Part Number | 457191 |
| Item Name | Gasket,spiral Wound |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | ENGINE,ACFT,TURBO&FAN |
| Cross-Sectional Thickness | 0.108 INCHES MINIMUM AND 0.108 INCHES MINIMUM AND 0.111 INCHES MAXIMUM0.111 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | CIRCULAR |
| Material Document and Classification | AMS 5542 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER |
| Outside Diameter | 0.623 INCHES MINIMUM AND 0.623 INCHES MINIMUM AND 0.633 INCHES MAXIMUM0.633 INCHES MAXIMUM IN |
| Aperture Diameter | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Material | NICKEL ALLOY X-750 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 457191 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 457191 | 3/9 Design control — primary reference Schneider Electric Systems Usa Inc |
| 457191 | 5/2 Secondary reference U.S. Government activity |
NSN 5330-00-879-0840 is a Gasket,spiral Wound, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-879-0840 has 1 manufacturer part number on file: 457191 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5962-01-111-9373, 3110-01-301-6489. Verify interchangeability with system specifications before substitution.
Key specifications for 457191: FSC Application Data: ENGINE,ACFT,TURBO&FAN; Cross-Sectional Thickness: 0.108 INCHES MINIMUM AND 0.108 INCHES MINIMUM AND 0.111 INCHES MAXIMUM0.111 INCHES MAXIMUM IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: 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.