The Retainer,packing, cataloged under National Stock Number 5330-01-341-6773, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-341-6773 |
| Primary Part Number | GS570AH220 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.282 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | SPECIAL |
| Peripheral Diameter | 1.550 INCHES NOMINAL IN |
| Center Hole Diameter | 1.370 INCHES NOMINAL IN |
| Material | PLASTIC ACETAL OVERALL |
| 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 |
|---|---|
| GS570AH220 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| S12561-220-5 | 5/9 Secondary reference U.S. Government activity |
| TF402A-220 | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
| TF402A-220 | 5/9 Secondary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| S12561-220-5 | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. |
NSN 5330-01-341-6773 is a Retainer,packing, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-341-6773 has 1 manufacturer part number on file: GS570AH220 (Northrop Grumman Systems Corporation).
Key specifications for GS570AH220: Temp Rating: -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.282 INCHES NOMINAL IN; Cross-Sectional Shape Style: SPECIAL; Peripheral Diameter: 1.550 INCHES NOMINAL IN. 6 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.