The Gasket, cataloged under National Stock Number 5330-01-358-8437, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Michell Bearings Limited. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5330-01-358-8437 |
| Primary Part Number | 4-275-1001 |
| Item Name | Gasket |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Michell Bearings Limited |
| Status | ACTIVE |
| Style Designator | NON-CIRCULAR |
| Cross-Sectional Shape Style | SOLID SINGLE OR COMPOSITION |
| Aperture Diameter | 25.0 MILLIMETERS NOMINAL MM |
| Bolt Hole Quantity | 4 |
| Center to Center Distance Between Bolt Holes Along Length | 56.0 MILLIMETERS NOMINAL LOCATION NOT OTHERWISE SPECIFIED MM |
| Center to Center Distance Between Bolt Holes Along Width | 30.0 MILLIMETERS NOMINAL LOCATION NOT OTHERWISE SPECIFIED MM |
| Outside Edge to Bolt Hole Center Distance Along Length | 12.0 MILLIMETERS NOMINAL MM |
| Outside Corner Radius | 10.0 MILLIMETERS NOMINAL MM |
| Hole Diameter | 10.0 MILLIMETERS NOMINAL LOCATION NOT OTHERWISE SPECIFIED MM |
| Outside Edge to Bolt Hole Center Distance Along Width | 10.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 4-275-1001 | Michell Bearings Limited (GBR) |
| A1.85.377REF-2 | Michell Bearings Limited (GBR) |
| A1.85.380REF-2 | Michell Bearings Limited (GBR) |
| Reference | Meaning |
|---|---|
| J140901 | 3/2 Design control — primary reference U.S. Government activity |
| 4-275-1001 | 5/2 Secondary reference U.S. Government activity |
| A1.85.377REF-2 | 5/9 Secondary reference U.S. Government activity |
| A1.85.380REF-2 | 5/9 Secondary reference U.S. Government activity |
NSN 5330-01-358-8437 is a Gasket, manufactured by Michell Bearings Limited, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-358-8437 has 3 manufacturer part numbers on file: 4-275-1001 (Michell Bearings Limited), A1.85.377REF-2 (Michell Bearings Limited), A1.85.380REF-2 (Michell Bearings Limited).
Key specifications for 4-275-1001: Style Designator: NON-CIRCULAR; Overall Length: 80.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Overall Width: 50.0 MILLIMETERS NOMINAL MM. 10 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.