The Packing,preformed, cataloged under National Stock Number 5330-01-168-4272, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 8 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5330-01-168-4272 |
| Primary Part Number | 2533405-111 |
| Item Name | Packing,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Temp Rating | 275.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Elongation Percentage | 160 MAXIMUM |
| Peripheral Diameter | 0.630 INCHES NOMINAL IN |
| Center Hole Diameter | 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 2533405-111 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 68402 | 5/1 Secondary reference Calex Corp |
| RV51-56ITEM8 | 5/1 Secondary reference U.S. Government activity |
| 5330PL0872729 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS28775-111 | 5/1 Secondary reference U.S. Government activity |
| 4111-77 | 5/1 Secondary reference U.S. Government activity |
| 823976 PC 45 | 3/1 Design control — primary reference Calex Corp |
| 823976 | 5/1 Secondary reference Calex Corp |
NSN 5330-01-168-4272 is a Packing,preformed, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-168-4272 has 1 manufacturer part number on file: 2533405-111 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
5 possible matches (shared part number, not a government interchangeability claim): 5330-01-168-4273, 5360-01-168-4431, 4320-01-184-4514. Verify interchangeability with system specifications before substitution.
Key specifications for 2533405-111: Temp Rating: 275.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Elongation Percentage: 160 MAXIMUM. 8 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.