The Retainer,packing, cataloged under National Stock Number 5330-00-998-7933, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-00-998-7933 |
| Primary Part Number | K250576 |
| Item Name | Retainer,packing |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| Outer Groove Depth | 0.187 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Cross-Sectional Height | 0.702 INCHES MINIMUM AND 0.712 INCHES MAXIMUM IN |
| Body Recess Diameter | 1.065 INCHES NOMINAL IN |
| Inner Groove Depth | 0.062 INCHES NOMINAL IN |
| Material Document and Classification | AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | SPECIAL |
| Angle | 45.0 DEGREES NOMINAL |
| Peripheral Diameter | 1.492 INCHES MINIMUM AND 1.498 INCHES MAXIMUM IN |
| Outer Groove Width | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN |
| Inner Groove Width | 0.070 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Center Hole Diameter | 0.578 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Body Recess Depth | 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN |
| 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 |
|---|---|
| K250576 | Metro Reliable Resources Corp. Dba Metro Reliable Resources Corp (USA) |
| K250576 PRIMARY | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| K250576 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| K250576 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
| 250576 | 5/9 Secondary reference Kidde-Fenwal, Llc |
| K250576 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| 250576 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 5330-00-998-7933 is a Retainer,packing, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-00-998-7933 has 2 manufacturer part numbers on file: K250576 (Metro Reliable Resources Corp. Dba Metro Reliable Resources Corp), K250576 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-139-1283. Verify interchangeability with system specifications before substitution.
Key specifications for K250576: Outer Groove Depth: 0.187 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Cross-Sectional Height: 0.702 INCHES MINIMUM AND 0.712 INCHES MAXIMUM IN; Body Recess Diameter: 1.065 INCHES NOMINAL IN. 15 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.