The Retainer,packing, cataloged under National Stock Number 5330-01-549-4741, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-549-4741 |
| Primary Part Number | 2643-670-01-38CP |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Cross-Sectional Thickness | 0.031 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZW |
| Material Document and Classification | SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SQUARE |
| Angle | 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Peripheral Diameter | 1.870 INCHES NOMINAL IN |
| Distance Between Ends | 0.062 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.500 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Joint Type | SCARF-BUTT RETAINER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2643-670-01-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-7108792-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 7383858-264367001-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| MS28782-28CP | Naval Inventory Control Point Mechanicsburg (USA) |
| H547-0001-264367001-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2643-670-01-38 | 5/1 Secondary reference U.S. Government activity |
| 845-7108792-38 | 5/1 Secondary reference Naval Sea Systems Command |
| MS28782-28 | 5/1 Secondary reference U.S. Government activity |
| 7383858-264367001-38 | 3/1 Design control — primary reference Naval Sea Systems Command |
| H547-0001-264367001-38 | 5/1 Secondary reference U.S. Government activity |
NSN 5330-01-549-4741 is a Retainer,packing, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-549-4741 has 5 manufacturer part numbers on file: 2643-670-01-38CP (Naval Inventory Control Point Mechanicsburg), 845-7108792-38CP (Naval Inventory Control Point Mechanicsburg), 7383858-264367001-38CP (Naval Inventory Control Point Mechanicsburg), MS28782-28CP (Naval Inventory Control Point Mechanicsburg), H547-0001-264367001-38CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2643-670-01-38CP: Cross-Sectional Thickness: 0.031 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Cross-Sectional Height: 0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN; Criticality Code Justification: ZZZW; Material Document and Classification: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.